Suggested By Dualgunner
For this match James Heller is current incarnation before absorbing Alex Mercer, and Carnage is in his most powerful incarnation.
The battlefield is all of New York City, both contenders are starting in Times Square; police and other armed forces are a factor in the battle.
Neither opponent can absorb the other.
If Heller stomps, he loses Critical Mass attacks.
If Carnage stomps, all of New York catches fire and they have to fight in that.