Battles are won by death or KO. This is Magneto from First Class/DOFP. Andrew from the end of Chronicle. Sylar from the end of Season 1. Both scenarios all opponents start 20 ft from each other.
Round 1- Takes place in the city. (Same end battle from Chronicle. The police, SWAT etc are trying to stop the battle.)
Round 2- Takes place from the end battle of X-Men DOFP. Magneto has the Sentinels under his control.