It's either the rpg2 or rpg7 from nam pack 2, most likely the vehicle will be a manned or unmanned chopper, in a jungle enviroment, and possibly under gunfire, but maybe not...
though, when I tried to make this work, I tested it with rpg2 and rpg7, in open area, no shooting around them, both on empty vehicle with no enemies around, and on a flying chopper, and they just sat there looking stupid...
and selecting weapon doesn't work :-\