for those of you who need help, upgrade the vulcan auto and the rifle until they r obserdly high. after that upgrade grenade. upgrade vulcan (controlable) last.
dam...rocket launcher beats rail and electric gun when its upgraded. not only will it shoot off screen, it is instant reload, instant kill, and splash damage. only hope on last level for me
wow...i just raped by getting all 3 damage upgrades in campaign. Thar ya go if you need help for hardened. also, get morale boost and defense after that