Not sure what the mission was called, but u where suppose to defend weapon crates in the himalayas. You are trying to stop 3 trucks aswell, before defending the smaller outpost with those 3 rooms with weapon crates.

First time, i played with a cracked version (had all the extra missions aswell). Then i wanted to buy and support the game, and that mission never came up during the second time i played.

Any idea why?