Sorry to be picky, but when the game is really good, I need to talk about the little things! hahaha
The font could be a little bigger.
The first level was very well built. I was even more surprised when I realized it's random.
I found that right-clicking deselects everything, quite useful.
I think the collision of the shooter' bullets (or perhaps the collision of the character himself) should be a little smaller. The shooter can hit me even if I'm on the other side of the wall.
Beside that, great game as always! Congrats!