@KmobKiller: level 12? Build south towards the well and get 3 blasters, a SAM turret, and a relay up ASAP. Send a blaster up the hill to make room for another relay and then send in the other blasters after you place that relay. You'll need 2 blasters to control the well and that should give you some breathing space. Good luck!
Alien Campaign Mission 15: So far so good. Suddenly.... Raze shows up again and the game becomes unbeatable. The guy takes 2 clips from a rocket launcher to kill!