how to activate the cheats and killing all the bugs!!!
To activate the cheats, right click the game icon and select properties. The add " -devuser" without the speech marks and with a space to the end of it. To kill the bugs easily or effectivly use these ways.
Warrior - shoot them anywhere with the marauder MK4 rifle
Tigers - shoot them anywhere with armour piercing bullets or the secondary weapon from the infinite ammo gun
Little blue hoppy things that spit at you - fire blindly!
Tiger spit - 2 rockets from the MRL
Tiger spit (the spiky one) - Railgun
Tanker - in the head
Full grown tanker - in the head
Plasma - in the head (hard) or the bum when it opens up
FREAKIN HUGEST TANKER EVER - see above
Royal warrior - those glowy things on the side that arent sticking out
Royal X bug - this is in two sections. Blast out it's eyes, then switch to the railgun and KILL THAT BASTARD!!!!