Horrible "puzzle" game. You literally can't make wrong move. Bruteforceing your way to victory pretty much, braindead. I stopped at lvl 15, don't know if it improves but this is way too boring and easy.
Giving this 2/5 since there is a big bug in game, last gun is bugged on satelite, and seeing that comment was made on 2011 developer had more than enough time to fix it but he didn't. Otherwise I wasn't very impressed with game but it was interesting, no challenge though.
Sorry, I should've learned from gamedesign masterminds like yourself