Round 1: Apokolips vs Bastion + 170k nimrod sentinels
Round 2: Apokolips vs Hank Henshaw + Manhunters
Round 3: Apokolops vs Ultron and Phalanx from Annihilation
Round 4 Apokolips vs All three groups.
Battle on Apokalips. Assume that Hank Henshaw cannot take control of Ultron's and Bastion's forces and has no rings. Standard Manhunters. No Omega nonsense from Darkseid. Hopefully more interesting.