seems to be balanced, but still think it needs some adjustments:
exemple: humans weapons> some weapons are powerful considering that the aliens are weaker, especially using teamwork
i have some suggestions.
Humans
painsaw> add overheating bar.
rifle> add more spread reduce the efficiency in medium/long distance, and add 2x scope(for long range,less spread and and movement).
shotgun> easy to hit, the 1.1 shotgun is fine to me.
lasgun> add ammo clip and some spread exemple> 30/40 cells per clip, fast reload(like a half life'S 2 AR2), and add 4x scope(for long range,less spread and and movement) .
Mass Driver> the the 1.1 Mdriver is good in 1.2(and add 4x/8x scope).
chaigun> the 1.2 is good against small aliens, would be improved rifle, the Flamethrower already has the function of killing small aliens(and add overheating bar)
Flamethrower> hum, nice, but, yet it is easy to cause damage to yourself and allies.
Prifle> the speed is good, but, strong. add some spread(this gun would be useful in short distances), and add overheating bar.
Lcannon> i like it, but, i like the old lcannon, could be interesting to have 2 lcannon(close and long range)
in relation to aliens, I have no more suggestions, I'll play a little more aliens to see if I have more ideas that could perhaps help improve the game.