I've used this build a lot and the only two changes I would make is the Tier 2 B "Quick Deploy" on the Turret since EM no longer works on half built turrets and Lures for rounding up enemies when you don't have space to kite. Lure near a turret or in the middle of the tunnel and blend em up. Rock and Stone!

I can imagine how well this would work for the damage spread, but if a large single target like a Bulk Detonator spawned in, how would you kill it quickly?