a mass selection for units of the same type would be nice, had fun with this but i find myself wasting time by having to click on every single sniper and up grade them one at a time, and be sure to mention in the unit description if it shoots at flying enemies too, im not meaning to point out faults i loved the game over all just droping a few suggestions that might help with stream lining it
 "Swarm Defender"){kind=icon}