Oh my god, this was amazing! It took a few to understand what the hell was going on but once I got the the hang of it, I had loads of fun! My main tactic was to use crap on the battlefield that I didn't want to make chokepoints. Enemies were decent and kept upping their gear every level but I was never in any danger of being killed. I'd suggest making them a bit more powerful/aggressive in later levels. Had a blast! 5/5!