In my first game as a warrior I avoided skills and equipment bonuses that were overpowered (ie Frost swords) and only used 1 charm. Playing a survivor on hard, I did a lot of hit and run with a bow to kill the zombie Jake on level 1. I only played a mage briefly; using the Meteorstrike spell it wasn't even funny how fast Jake died, since it has a stunning effect and can be cast repeatedly almost as fast as you can click.