Have killed all the men. used the missile launcher to kill one helicopter. but only one missile to use and there are two helicopters. used normal guns to try and kill other helicopter but it smokes and goes down the dam but does not die. unable to get to it as there are no routes to that point. game has come to a halt.

Please assist anyone.

Thx

me too! if you go to one of the four outpost you can find three rocket launchers, but they're very hard to use. so far i haven't successfully knock out the choppers yet. maybe i suck

This is a problematic mission

There are 8 pages of discussion on getting past it here, there might be some help there.