I'm a big fan of the Farm and Pterodactyl Park because they're so versatile and have a couple of unique chokepoints. For the farm, I tend to block the eastern and northern entrances with vans or trucks. There is a gap in the defenses behind the generic building and that can be blocked with a long car. You can climb to the second floor of the barn and perch there sniping whatever comes to the western gate. For the Trailer Park, I do as you suggested and just concentrate there. I will mine the trailers outside the walls or even put two vehicles there to block zeds from climbing up onto the trailers. I love this video and that discovery you made of Fort Marshall is very genius. Keep going!
For Farmland, blocking doors will absolutely do nothing.. If you test multiple sieges in Farmland with different doors blocked, the results will always end up the same. Juggs can't enter the north door. So it is unnecessary to block it. Blocking any other door is pointless since they all lead the zombies to the open center. The south east wall gap is nothing to be worried about. When zombies climb over the wall there, they will just run where the fight is taking place..
@@StateofDecayScience -- From my experience, the only door in the farm compound to block that does any good is the one that is behind the barn. Juggs can get in there, and if they catch a community member in the close quarters of the inside of the barn, then it's curtains for that community member. I always block that door, and create the killing area in the center by allowing the east and west entrances to be open.
I'm baffled but grateful for knowing that simply not choosing to repair the watchtowers could make such a huge difference! Thanks for that information. Still, I think I'll keep the Farmland Compound as my main one for Trumbull Valley. As you said, keeping a facility that dones't obstructs line of sight in the middle is more than enough to help with it's defense thanks to the open space it has to fight.
Wow, that was incredible! You didn't have to, but you even put captions. I really appreciate all the research and hard work you put in your videos. Keep up the great work!
Excellent videos, this one and the previous one. You are a true boon to the SoD2 community and I always enjoy watching your videos. They are always done with precise and careful study. Well done.
Great guide! the idea of base layout is really vital to higher difficulty survival, but it feels like its barely been a thought in the minds of the devs. Watchtowers don't work, zombies just waltz through unbarricaded doors and the bases themselves don't feel like they are designed around getting sieged. Your testing makes it easy to figure out things the game doesn't really tell you.
I recommend you make more videos covering the science and strategy behind other popular games. Maybe not on this channel, but maybe sometime in the future!
It has been 2 years since I played any other games. Just cannot find enough time make videos consistently! All the tests and detailed editing takes too much time.
Thanks for the bunch of advice and tips for this game and the hours you've spent to collect and produce the data. Not just this video but all the rest.
Wow, thank you so much for your videos, I really find them helpful! Two questions though: If I'm in the RT Daybreak FOB, what is going to happen if I already have someone with the Demolitions skill and I start the mission to get the RD Contractor? Will he have another random Red Talon skill? My second question is what happens when I leave the RT base in which I repaired all facilities before, and return later in the game - will I have to repair everything again? I moved in (on lethal) and was so happy about the Red Talon guy, but he died very soon after :D it would be great to get the opportunity to start the mission a second time (and not to repair the sniper tower). I am very short on Influence and basically on everything else too, so I can't just try it out - it would be way too expensive. I'd be so glad for an answer!
If you already have munitions + electronics in your base, your base members themselves will say, "I can do this myself!" If you change base and come back, facilities will get damaged again.
Hey RvidD is the haven device worth getting? I stopped playing SoD 2 years ago and I play occasionally! Love the tips and tricks dude very helpful thnx!!
I only consider it as a waste of slot. If you absolutely hate sieges, build haven devive. But if sieges are fine for you, Haven devive will be unnecessary in the bases that score 8 points and above.
Thank you for this! Now I have a question that might be dumb but how do you get that greenhouse garden we can see in Tranquility Factory? (4:05) Facilities are usually pretty ugly but this one look so nice! I need it!
on update 33 the watch towers have different capabilities ie extending the safe zone and things like that does this change your mind or will you still not build any watch towers?
Hey Rvid, I found a way to get the network signal booster and white noise machine mod which always worked for me when I last played the game. In Trumbull valley, you’ll be given a mission by Ray Santos where you have to find car parts with a Network agent. You'll then have to drive her to a place and talk to her to finish the mission. Just before ending the mission, choose to trade with her and you’ll find a Network signal booster mod in her inventory (this is better than waiting days & weeks for random network traders to appear). You can trade with her only before ending the mission. And Izbee has the white noise machine mod in her inventory, which you can buy from her. I last played the game back in November last year, so I'm not sure if you can still buy these mods the same way after the latest update. You should try it and if this method still works, make a video on it.
As always, another excellent video and guide for State of Decay 2! One thing I am curious about though - on any base that comes with a watchtower, especially bases with an already active watchtower, could you purposefully allow yourself to run out of materials and thereby break the watchtower? While I haven’t tested it myself, I feel as though it could have promising results on bases like Whitney Field, and increase their ability to defend sieges as long as you keep the tower broken. It’d obviously be a hassle to wait to get it all set up, but also interesting if it works!
It's an interesting idea, however, there is no way to predict which facility will break first. You may end up waiting for all facilities to break before the watchtower. The problem is for example, if the infirmary breaks first, you will have to wait to see what breaks next because if you fix the infirmary, ti may break again the next cycle before the watchtower. There are no rules to what facilities break or the order in which they break. It is all completely random.
I tested it. The built in watchtowers will never break. Because they don't have daily maintenance cost. Should have checked that first before waiting multiple hours for the result.
@@StateofDecayScience I’m sorry to mention it but then have it not work out :( I feel it would have been genuinely promising though for some bases that have really bad tower placement, or just need more survivors in open areas of the base. Thank you for testing it regardless, this is why you’re the best State of Decay channel for this kind of information!!
Why do you feel sorry for this? I told, "I wasted hours" in a sarcastic way. Should have added exclamation marks!!!!! I don't mind testing new things. That's how I make new videos. Imagine how many hours I have wasted by testing things that didn't work out the way I expected!! Hundreds!
I need minimum 3 Large places! One for the Warlord Ammo tent, the Trader Tent and a stage area to make recourse maintenance to 0. My favourite is the base, where you have 5 large slots! There I even add the warlord barracks, so 8 people have in one slot a sleeping place and the huge medical tent. So you have a base with all important Leader buildings.
Keep in mind that beds are completely useless. I tested beds and made a video about it. Take a look if you are interested. It is the 3rd video in my videos tab.
@@StateofDecayScience Just watched it and am shocked. So beds are actually useless. Only question you did not answer, do the people get faster fit again when tired or no difference?
@@StateofDecayScience So one of your characters are tired/exhausted now and have now a stamina penalty because of that. Do they faster loose that malus with enaugh beds or same without beds?
I'd love you to come back to this type of guide in the new update and cover the other maps, looking forward to a fresh start forever community on Wednesday after I've been out of the game for the last 3 updates.
with the inestation update ive been trying to find the optimal loadout for ai defenders, whats the best in slot skills and equipment on characters i dont intend on playing just there for defense?
I have a few other very important videos in the priority!! Will make a combined bases guide for all the maps after that! Goto Lumber Mill in Prov for a good defensive base!
@@StateofDecayScienceI'm at the Fire Station because I need it's facilities. So far I blocked the big gate entrance and the back one facing the forest. Juggernauts need to make a big circle around the base to enter it and often get killed on the way by built-in watchtower guards. I also use tower guards to help me kill enemies while I fight them outside the base.
1 question: if we exile free red talon from trumbull valley, and restart map with same community, did the quest still available to recruit another free red talon?
If you absolutely hate sieges, Haven will be useful. But if you build Haven for defense, Haven will always be wasting a slot if you are choosing defensive bases. If I start a fresh community in LZ, I always move to Tranquility factory. Once I moved there, I beg for massive sieges because defense will be so good. I can get a good amount of plague samples. I rely on my AI members during sieges in my fresh communities. I only kill screamers and carry a heavy weapon to immobilize the ferals. My members will quickly take of the juggs with the best available guns (no 50 cal).
@@StateofDecayScience This is my first time and I'm playing on Standart so I gues I'm not gonna face bad situtations etc and I'm playing with my friend, I gues that means haven device will be not needed and wasted my slot then?
@@SonAnkaTV In standard zone, you don't even defensive bases. so you absolutely don't need haven device if you are okay with sieges. Also never build watchtowers.
Rvid, in your opinion, is it better to have a survivor with "Blood Plague Survivor" trait or "Unbreakable" trait? If it requires a video, I would absolutely love to see it!
I have not used any of them. But BP survivor trait is like Builder boon. Just too OP. How many members have you lost because of zero health and how many have you lost because blood plague? Which is more??? The answer to the above question will give you a perfect answer!!!
@@StateofDecayScience -- That's a very good point. However for me, the answer to that is both. If I get cornered enough to get BP from combat, then I usually end up dying by being beaten to death. Lol.
@@ArthurCallahanSolos spend 30mins rolling characters and you'll eventually get it or longer if you want all 3 to have the trait. Lol. Only really worth it if playing lethal zone tho. I never used them myself but I have never died in lethal zone from blood plague unless it was from driving into a bloater. Which was early game. You can survive them late game tho. Either way keeping cures on you or in your vehicle at all times solves the issue of dying from blood plague.
Hello Mate. Iam a big fan of this game since 1 month :) And i saw a lot of ur movies on YT. Ive got question... who is this surviror u are constantly playing? This blonde lady? Red talon ofc. but where did u get her? U always play with this char so i guess its ur permanent main char. How to obtain it. Thx for asap answer :)
@@StateofDecayScience Regarding to ur (or someone elses movie on YT) u can obtain free RT Soldier with Demolition skill by taking base: Talon Base in Trumbley Valley?
@@StateofDecayScience i happen to roll for hours already, hoping to get vigil + frontline on the free RT contractor but no luck. i think they will never give out that combo on the free RT contractor
LOL Red Talon base is a joke. I lost two people because they got stuck in this tight base. One was red talon so for me this base sucks most even first base is better
The effing thing they did though is that the devs made an automatic car relocation for the ones you used in blocking doors even if freeing one door for zombie barging, they still make the cars relocate to their parking spaces which isn't realistic and gets boring knowing this. AOne of the best zombie apoc games but that auto relacate cars made it cringy.
Just don’t cram a bunch of cars around your base. The auto relocate only happens if there are too many vehicles packed into the area of your base. Move extra cars a short distance away and the ones you park in front of doors (and in your base parking), will all stay where you left them
@@sostrongineedmoreofyourmon974 they made it that way even if you only put 1 car to block the way. If you got out of the base after a few distance or loaded the game, it goes back parked at the lot. Trust me buddy. Did everything and it relocates back.
State of Decay Science Discord:
discord.gg/yVcvjs9V6v
Critical Base Building Tips:
ua-cam.com/video/xOW69dXns4E/v-deo.html
Hey quick question did they ever re enabled the hero skill when they where disabled when update 27 came out ?
No
I'm a big fan of the Farm and Pterodactyl Park because they're so versatile and have a couple of unique chokepoints. For the farm, I tend to block the eastern and northern entrances with vans or trucks. There is a gap in the defenses behind the generic building and that can be blocked with a long car. You can climb to the second floor of the barn and perch there sniping whatever comes to the western gate. For the Trailer Park, I do as you suggested and just concentrate there. I will mine the trailers outside the walls or even put two vehicles there to block zeds from climbing up onto the trailers. I love this video and that discovery you made of Fort Marshall is very genius. Keep going!
For Farmland, blocking doors will absolutely do nothing.. If you test multiple sieges in Farmland with different doors blocked, the results will always end up the same.
Juggs can't enter the north door. So it is unnecessary to block it. Blocking any other door is pointless since they all lead the zombies to the open center.
The south east wall gap is nothing to be worried about. When zombies climb over the wall there, they will just run where the fight is taking place..
@@StateofDecayScience -- From my experience, the only door in the farm compound to block that does any good is the one that is behind the barn.
Juggs can get in there, and if they catch a community member in the close quarters of the inside of the barn, then it's curtains for that community member. I always block that door, and create the killing area in the center by allowing the east and west entrances to be open.
I'm baffled but grateful for knowing that simply not choosing to repair the watchtowers could make such a huge difference! Thanks for that information. Still, I think I'll keep the Farmland Compound as my main one for Trumbull Valley. As you said, keeping a facility that dones't obstructs line of sight in the middle is more than enough to help with it's defense thanks to the open space it has to fight.
Wow, that was incredible! You didn't have to, but you even put captions. I really appreciate all the research and hard work you put in your videos. Keep up the great work!
Thank you for this video. I always look forward to your guides. This video is very informative.
They're the best. Every video shows me something new and I get better at Lethal because of it.
This is a well-made video, very informative and simple. I love it, you sir, deserve a like and follow.
Excellent videos, this one and the previous one. You are a true boon to the SoD2 community and I always enjoy watching your videos. They are always done with precise and careful study. Well done.
Great guide! the idea of base layout is really vital to higher difficulty survival, but it feels like its barely been a thought in the minds of the devs. Watchtowers don't work, zombies just waltz through unbarricaded doors and the bases themselves don't feel like they are designed around getting sieged. Your testing makes it easy to figure out things the game doesn't really tell you.
It'd be a sin to not give this video a like. The amount of work and data put into one single video is impressive!
I recommend you make more videos covering the science and strategy behind other popular games. Maybe not on this channel, but maybe sometime in the future!
It has been 2 years since I played any other games. Just cannot find enough time make videos consistently! All the tests and detailed editing takes too much time.
As always, making my gameplay easier with each time I play! Thanks RvidD! I was able to finally claim my last leader bounties on lethal =D.
Great video, really informative!
Looking forward to the rest of the guides 😁
Very insightful video, I don't know why you put this much effort into it but thanks for the content!
For the farm base a level 2 farm also doesn't have a roof. Gives the same line of sight as the staging area but is more useful.
Thanks for the bunch of advice and tips for this game and the hours you've spent to collect and produce the data. Not just this video but all the rest.
Wow, thank you so much for your videos, I really find them helpful!
Two questions though:
If I'm in the RT Daybreak FOB, what is going to happen if I already have someone with the Demolitions skill and I start the mission to get the RD Contractor? Will he have another random Red Talon skill?
My second question is what happens when I leave the RT base in which I repaired all facilities before, and return later in the game - will I have to repair everything again? I moved in (on lethal) and was so happy about the Red Talon guy, but he died very soon after :D it would be great to get the opportunity to start the mission a second time (and not to repair the sniper tower). I am very short on Influence and basically on everything else too, so I can't just try it out - it would be way too expensive.
I'd be so glad for an answer!
If you already have munitions + electronics in your base, your base members themselves will say, "I can do this myself!"
If you change base and come back, facilities will get damaged again.
Hey RvidD is the haven device worth getting? I stopped playing SoD 2 years ago and I play occasionally! Love the tips and tricks dude very helpful thnx!!
I only consider it as a waste of slot. If you absolutely hate sieges, build haven devive. But if sieges are fine for you, Haven devive will be unnecessary in the bases that score 8 points and above.
Thank you for this!
Now I have a question that might be dumb but how do you get that greenhouse garden we can see in Tranquility Factory? (4:05)
Facilities are usually pretty ugly but this one look so nice! I need it!
That is Farm 3.
Both farm 3 and garden 3 are like this. That's why I prefer them over hydroponics.
Aesthetics is way more importhant than survival!!
@@StateofDecayScience Wow thank you for such a quick reply!
I guess all I need now is a Trader leader. Thanks again, keep up the good work!
Always learning something new here.
That's the goal in all my videos (except news videos)
thanks for your hard work in doing this! it will help me doudt hope to see the other maps too :)
on update 33 the watch towers have different capabilities ie extending the safe zone and things like that does this change your mind or will you still not build any watch towers?
That's why you are the Scientist! Great research and top quality vid man! 🏆👍😎
Thanks for the video. It was very interesting.
Is it good to build a sniper tower (leader type) at the center of the farmland compound?
Absolutely not. If you want sniper support, build it in the corner
Fantastic video as always
Hey Rvid, I found a way to get the network signal booster and white noise machine mod which always worked for me when I last played the game.
In Trumbull valley, you’ll be given a mission by Ray Santos where you have to find car parts with a Network agent. You'll then have to drive her to a place and talk to her to finish the mission. Just before ending the mission, choose to trade with her and you’ll find a Network signal booster mod in her inventory (this is better than waiting days & weeks for random network traders to appear). You can trade with her only before ending the mission.
And Izbee has the white noise machine mod in her inventory, which you can buy from her.
I last played the game back in November last year, so I'm not sure if you can still buy these mods the same way after the latest update. You should try it and if this method still works, make a video on it.
I will add it to the list of videos to make!
I'd you have the red talon workshop I think you can just craft it.
Thanks for the info with the watch towers,
As always, another excellent video and guide for State of Decay 2!
One thing I am curious about though - on any base that comes with a watchtower, especially bases with an already active watchtower, could you purposefully allow yourself to run out of materials and thereby break the watchtower? While I haven’t tested it myself, I feel as though it could have promising results on bases like Whitney Field, and increase their ability to defend sieges as long as you keep the tower broken.
It’d obviously be a hassle to wait to get it all set up, but also interesting if it works!
Never thought about it. Don't know whether they will break or not. Will do a test!
It's an interesting idea, however, there is no way to predict which facility will break first. You may end up waiting for all facilities to break before the watchtower. The problem is for example, if the infirmary breaks first, you will have to wait to see what breaks next because if you fix the infirmary, ti may break again the next cycle before the watchtower. There are no rules to what facilities break or the order in which they break. It is all completely random.
I tested it. The built in watchtowers will never break. Because they don't have daily maintenance cost. Should have checked that first before waiting multiple hours for the result.
@@StateofDecayScience I’m sorry to mention it but then have it not work out :( I feel it would have been genuinely promising though for some bases that have really bad tower placement, or just need more survivors in open areas of the base. Thank you for testing it regardless, this is why you’re the best State of Decay channel for this kind of information!!
Why do you feel sorry for this? I told, "I wasted hours" in a sarcastic way. Should have added exclamation marks!!!!!
I don't mind testing new things. That's how I make new videos. Imagine how many hours I have wasted by testing things that didn't work out the way I expected!! Hundreds!
I need minimum 3 Large places! One for the Warlord Ammo tent, the Trader Tent and a stage area to make recourse maintenance to 0. My favourite is the base, where you have 5 large slots! There I even add the warlord barracks, so 8 people have in one slot a sleeping place and the huge medical tent. So you have a base with all important Leader buildings.
Keep in mind that beds are completely useless. I tested beds and made a video about it. Take a look if you are interested. It is the 3rd video in my videos tab.
@@StateofDecayScience Just watched it and am shocked. So beds are actually useless. Only question you did not answer, do the people get faster fit again when tired or no difference?
"do the people get faster fit again when tired or no difference?"
I actually cannot understand this sentence. Can you rephrase this in simpler terms?
@@StateofDecayScience So one of your characters are tired/exhausted now and have now a stamina penalty because of that. Do they faster loose that malus with enaugh beds or same without beds?
Beds don't affect that either
I'd love you to come back to this type of guide in the new update and cover the other maps, looking forward to a fresh start forever community on Wednesday after I've been out of the game for the last 3 updates.
I will try to make a single guide covering all the bases of the game. But not any soon. Few other important videos are in the priority!
The Farmland Compound + Haven Device is my personal favorite. 😎
with the inestation update ive been trying to find the optimal loadout for ai defenders, whats the best in slot skills and equipment on characters i dont intend on playing just there for defense?
Just don't build watchtowers and you should be fine.
So, the watchtower, made to protect the base, makes it undefended
Hi. Would be nice if you continued this series. I need a Providence Ridge base defense guide :)
I have a few other very important videos in the priority!! Will make a combined bases guide for all the maps after that!
Goto Lumber Mill in Prov for a good defensive base!
@@StateofDecayScienceI'm at the Fire Station because I need it's facilities. So far I blocked the big gate entrance and the back one facing the forest. Juggernauts need to make a big circle around the base to enter it and often get killed on the way by built-in watchtower guards. I also use tower guards to help me kill enemies while I fight them outside the base.
what will happen if u will block all gates. What zombies and member will do?
They can't enter. Also you won't be able to get out or in without moving vehicle.
make more maps , ur doing it better then most of other channels
1 question: if we exile free red talon from trumbull valley, and restart map with same community, did the quest still available to recruit another free red talon?
You can just switch bases and come back I think
@@StateofDecayScience thankss
Do you think Haven Device is wasting slot even we are using small slot haven device mod?
If you absolutely hate sieges, Haven will be useful. But if you build Haven for defense, Haven will always be wasting a slot if you are choosing defensive bases.
If I start a fresh community in LZ, I always move to Tranquility factory. Once I moved there, I beg for massive sieges because defense will be so good. I can get a good amount of plague samples.
I rely on my AI members during sieges in my fresh communities. I only kill screamers and carry a heavy weapon to immobilize the ferals. My members will quickly take of the juggs with the best available guns (no 50 cal).
@@StateofDecayScience This is my first time and I'm playing on Standart so I gues I'm not gonna face bad situtations etc and I'm playing with my friend, I gues that means haven device will be not needed and wasted my slot then?
@@SonAnkaTV In standard zone, you don't even defensive bases. so you absolutely don't need haven device if you are okay with sieges.
Also never build watchtowers.
@@StateofDecayScience Alright thanks mate.
I don't see the Base Defense guide for the other maps, where can I find them?
I didn't make them yet.
Rvid, in your opinion, is it better to have a survivor with "Blood Plague Survivor" trait or "Unbreakable" trait?
If it requires a video, I would absolutely love to see it!
I have not used any of them. But BP survivor trait is like Builder boon. Just too OP.
How many members have you lost because of zero health and how many have you lost because blood plague? Which is more???
The answer to the above question will give you a perfect answer!!!
Having a member with BPS completely removes the whole BP system from the game. Especially for modes like lethal zone. 5mins to cure or you dead.
@@StateofDecayScience -- That's a very good point.
However for me, the answer to that is both. If I get cornered enough to get BP from combat, then I usually end up dying by being beaten to death. Lol.
@@dougiexxtrillmoniumxx9727 yea, but it's super fking rare to get it
@@ArthurCallahanSolos spend 30mins rolling characters and you'll eventually get it or longer if you want all 3 to have the trait. Lol. Only really worth it if playing lethal zone tho. I never used them myself but I have never died in lethal zone from blood plague unless it was from driving into a bloater. Which was early game. You can survive them late game tho. Either way keeping cures on you or in your vehicle at all times solves the issue of dying from blood plague.
Hello Mate. Iam a big fan of this game since 1 month :) And i saw a lot of ur movies on YT. Ive got question... who is this surviror u are constantly playing? This blonde lady? Red talon ofc. but where did u get her? U always play with this char so i guess its ur permanent main char. How to obtain it. Thx for asap answer :)
Recruited her by calling for an RT soldier. She's my first RT. She is a Demolitions expert. The only RT skill I like.
@@StateofDecayScience Regarding to ur (or someone elses movie on YT) u can obtain free RT Soldier with Demolition skill by taking base: Talon Base in Trumbley Valley?
yup.. or you can follow this guide to recruit a perfect RT ua-cam.com/video/_Tc96kAK5Ms/v-deo.html
@@StateofDecayScience i happen to roll for hours already, hoping to get vigil + frontline on the free RT contractor but no luck. i think they will never give out that combo on the free RT contractor
@@cassandracastillo9317 Don't waste too much time. The guide in the pinned comment (RT video) will speed up the recruitment process by a lot
What are some of the best weapons for your survivors to equip?
Full auto only guns/50 cal
I like to go for the military bases fort marshal and checkpoint 4 is my favorite
basically
RvidD: NYET! Ground is Fine!
cool
the red talon base is awful. if you go, make it your second base. by the time you have 6-7 survivors, you can't maintain upkeep.
Of course its specifications are bad!
LOL Red Talon base is a joke. I lost two people because they got stuck in this tight base. One was red talon so for me this base sucks most even first base is better
I told not to repair the watchtower
Don't repair watchtower then imo. There pointless asf and will just make u lose survivors in higher difficulty.
The effing thing they did though is that the devs made an automatic car relocation for the ones you used in blocking doors even if freeing one door for zombie barging, they still make the cars relocate to their parking spaces which isn't realistic and gets boring knowing this. AOne of the best zombie apoc games but that auto relacate cars made it cringy.
Just don’t cram a bunch of cars around your base. The auto relocate only happens if there are too many vehicles packed into the area of your base. Move extra cars a short distance away and the ones you park in front of doors (and in your base parking), will all stay where you left them
@@sostrongineedmoreofyourmon974 they made it that way even if you only put 1 car to block the way. If you got out of the base after a few distance or loaded the game, it goes back parked at the lot. Trust me buddy. Did everything and it relocates back.
damn i picked a terrible base compared to these ones
Farmland base is the best one.
Military base is the worst... US Army.
this game was awesome... until i started playing Valheim. so long SOD.
I didn't repair the sniper towers in fort marshall but my people still used it.
They will just be standing there while idling. If a zombie enters the base, they will get down.
Why you get -4 zombie threat and 4 guards without any costs ;)