Disliked the commanding. I can't seem to figure out a way to have my units attack nearby units if they're being attacked while capturing a building. No clue how to cancel Waypoint movements, I put a waypoint at a far building but I needed to capture a closer building but all my units heading to previous waypoint I can't stop until they've reached that previous Waypoint. Units move like they're walking on a bridge.
I think being able to command units to stay when they spawn would be nice at start because units are stronger in numbers. Really good game but the commanding is flawed. Also achievements (if you call them that) like "Win in X amount of Time" yet it requires to be done on medium, is odd considering there is a harder difficulty ahead. I think it be better to add the achievements to a single difficulty.
The Killing Moon kills your GPU. Should make it so that skeletons summoned via The Killing Moon enchant can't proc more skeletons. I keep crashing against any level 3 using this card simply by the 40 skeletons coming out on each side.
I would suggest fewer towers. Think with this amount of towers upgrades could lead to them. Such as the Basic Tower upgrading to Machine Gun Tower and so on. I think stronger towers should be more expensive. Put the name of the Tower where it says "Select Unit". I expect a good final :)
Campaign on Normal is nearly impossible, I made it to 25 and low and behold 2 new enemies rather than the usual 1 every so often. Also theres a bug that make planes invisible after their first appearance and in order to bring them down you have to shoot randomly in the air and anticipate it.
Great game 4/5 simply because its fun. But I suggest when you kill something their bullets disappear or you get the heart automatically because everytime I killed something I couldn't get the heart since it was always blocked by the last ship's bullets.