just FYI, in a chopper the mouse controls your pitch. Moving it up pitches the helicopter forward, making you go forward. Down make you go back. Moving it left and right causes you to pitch left and right, making the helicopter basically just fly sideways. If you pitch too much in any direction, you crash. So, to keep it simple, only pitch a little forward and a little back.
The A key makes you go up, the s key makes you go down, and the a and d keys make you twist in the air (ie, turn).
I'm still not very good at flying a chopper, of course, but I gots da basics.
I think the US super soldier is over-powered. That M60 is just a badass. Too badass, IMO, And I wish there were flame throwers.
The pungi stakes and bouncing betties that the VC engineers have freakin rock, though. Put those on a narrow foot bridge and just watch dudes die like mad. Unfortuanetly my allies tend to die more than badguys.