Anyone beat this level yet? Enemies keep re-spawining and its hard to move forward. The tower is the first objective but then the necromancer appears and you have to take him out as well. I killed like 30+ skeletons but they keep chipping away while you try to take down the 2 main objectives and I got wiped out.
I'm level 24 and used mostly Guardsman with a balista and shooter.
Anyone have advice?