Aliens Colonial Marines: Destroy the AA guns 2 of 3

Destroy the second AA gun in A:CM

"Destroy the AA guns (2 of 3)" is a mission objective in the game Aliens: Colonial Marines

Briefing

There are a total of three AA Guns (Anti-Air Guns) you need to destroy

Mission

Derelict Reclaimed

Locations

Yard with AA Guns

Armory

Walkthrough

After destroying the first AA Gun, you will go down an elevator (If the button doesn't work, you have to wait for the other Marines to board it and it will get unstuck) then you will climb up some stairs and cross this bridge, climb down some more stairs.

Then enter the Armory from a door that opens. A second door will open inside, from there shoot the AA Gun using a M5 RPG Launcher found on a crate in the Armory.