I was thinking the 2D enviroment (My 3D knowledge is not good enough ). I haven't completely decided how this will end up looking, but I'm thinking about making it a bit like Project Wolf (found it on the Internet and tried it out. It's quite good, but not easy to play on a labtop with a touchpad). However it depends on how much time I can find. It is possible that it'll just be some enemies hiding behind obstacles and some other running at you.

At this moment I'm working on the strategy part of the game.