Great idea! I would like to know how it will develop. I found 3 things that bother me a little. Right now I'm missing some verticality on the level design... It's like the first thing I look around in a zombie game. Then the bandits seems too static, maybe making an special mode to diffence from other shooters? And last, in strategy mode I would like some building, it's always funny and usually a part of horde games.