Hmm... after a while testing plasma weapons with the arcingShot, I think it makes them way to powerful... you can just send one person to explore and as soon as you encounter someone, you can tell everyone to rain down plasma with incredibly accuracy. Also, since this goes over obstacles, it's impossible to aim at a wall, since the shoot will either land at either of the sides instead of hitting the wall. So I will remove it.
One thing I could do, is to edit all 3 plasma weapons into this:
-Reduce the number of rounds per clip. These guns have too much ammo, IMO.
-Remove the burst shot option from the plasma pistol and rifle.
-Turn the Heavy Plasma into a fully automatic siege weapon. Which only fires in bursts and with the arcingShot feature so it will be a mixture between the Auto Cannon and the Siege Cannon.
-Make it so all 3 plasma weapons are used by the aliens at later stages of the game to avoid aliens using only the Heavy Plasma.
Also, I could post a download link and keep it updated it so you can all try these changes and see if it's good content or not. I could use some feedback since I suck at rebalancing.