Pretty cool, but you might wanna fix the real nasty stuff:
-As you redo missions you cant pause when mission intro blab the same thing over on and on and on... so you die if you unpause before getting through all the spam.
-This game greatly reward pausing, clicking on formation settings, moving you stuff around to equalize damage, while waiting for your repair dude to get to the one thats 1 hit away from death. Kind of same thing for repair circle, its more efficient to use it when more than 1 unit is damaged since its a AoE, yet spreading damage around is a pain.
-Your units hp bar get hidden all the time by such as enemies, either way, you should have on your UI your formation and their health and while paused you should be able to hotswap formations. Not having to go through menus. If your goal by nesting this in a menu was so people wouldnt quick swap all the time, you just made it annoying, since its still allowed.
-The game is ridiculously easy if you take your time, there's no incentive to hurry up.
The star on 70%+ killed instead of most game 100% is a nice +