Flaming Xbows in centre field, with a HBVG pn their direct left and right!
That way , any of his regen save units, 12 trolls + throgg or 80 marauders with festus , who come close , will get hit first with 20 fire bolts, then a battery of hell blasting!
If any non regen units try to charge this battery, i will pin them with the Walter further out
The battery will be placed last in my set up, giving me tactical room to get him to place his units 1st
so i choose my locations and play