well done. kept me hooked but 1.time limit was harsh 2.the defensive abilities should auto activate 3 Inactive friendly turrets should go into a defensive mode where they take 10%-30% damage if they can't auto fire their weapons 4. the terrain manipulating weapons are a bit off-putting on the maps that begin with high ground. otherwise great stuff!
found a glitch where you can go to sandbox change the wall to six then go back to the main menu select a campaign playthrough any u will have 600 hp right off from the start