(un)professional l4d2 gameplay - the entire sacrifice campaign on realism advanced

woooo
music (i added) in order:
Black Mesa Source - Office Complex (Mesa Remix)
Doom - Intermission
Left 4 Dead - Level completed theme
tank music you hear continously near the ending is Gefradah - Cancertid

[@Kalligator]

This video is sponsored by Cancertid.

[@fruitshooterman6851]

Nice vid!!