Thank you for playing!
> The controls were a little hard to figure out, and I still don't know why sometimes I can't place a ranged unit in a given location at one point, then later on can.
Well, can't argue with this. I took an inspiration from touch screen mobile game. Maybe I should have done a better approaches on translating touch screen control into mouse & keyboard control.
> Switching back and forth between keyboard controls and mouse controls wasn't a good experience, though it's one I'm guilty of in my game as well!
I believe the game can be beaten using mouse only, including the title screen. I added keyboard control the player doesn't have to always drag the mouse into unit selection then back to the map to place unit. Well, sometimes the pause menu bugged out and cannot recognize mouse input.