Map Creation.
While the game alone itself is amazing, the map creation section of this game is just God Awful. I like the idea of being able to make a map, but sometimes I want to see other peoples. However, they're all terrible. Their idea of a "Good Map" is placing the player in a crippling or impossible condition, whether is be putting you in the middle of a horde without any people or supplies, to just plain undone lazily done work. At first I just thought it was a bunch of kids who thought "O LOLZ I CNA MACKE MAP N PUT IT UNLIEN!1", but that wasn't the case. Every single one I played was just asinine. So this leads me to believe that they weren't nurtured in the art of this map making. Perhaps a tutorial would've been better, as I saw many problems, such as supplies and populations just not being there. My message to other "Map Makers", is that if it's not finished, DO NOT UPLOAD IT. Play and BEAT it at least ONCE before you upload, just so you're sure that you can actually play it, enjoyably. Just because you made it and your mom said it was "Perfect" or you somehow think your special, does not make anyone satisfied. Finish your maps, be more creative than spamming zombies, and make it POSSIBLE to win.