ACE COMBAT™ 7: SKIES UNKNOWN : Finding Walrus, Buffle, Foudre

Getting all three aces of mission 12 in one run.
1- Foudre : Pass under one of the broken cannons.
2- Bufflehead : Destroy 3 A-10s that spawn to the east. BUFFLE will appear west of the map.
3- Walrus : Stop all bombers + ground forces before they damage Stonehenge. If you succeed, WALRUS spawns in the northeast behind the choppers.