Still couldn't get past my battle but still didn't skip it. The guide doesn't give a solution, just how to play. The way I thought I would win, was incorrect. That just brought one of my dead guys back to life. I wish I could see the door I'm trying to reach. It feels like it's 20 levels away but I suppose it's probably only 10.

Edit: Finally I see the bar that shows me moving up the levels. I get somewhere between halfway and the top then it's all over!