The details below

DC team:
Superman
Batman
Wonder Woman
GL (Hal Jordan)
Flash
Green Arrow

Marvel team:
Thor
Captain America (Steve Rogers)
Iron Man
Black Bolt
Hulk
Hawkeye

Situation:
there is no negotiating they don't no anything about each other and they start in a group. Morals are off and they are playing for either knockout or death I don't mind. There's no prep time.

Arena: they are on a planet that is Marvel except all DC hide outs (including those not included in the fight) are some where in the world. Both groups of characters know where there bases are. There are no other people or animals in the world.

Equipment: Batman has his car his plane is 50km away and his cave is 120km. Ironman has his suit that he used during the civil war and his hall of armour with 10 suits ranging from the first suit to the one used just before the civil war is 250kms away. Green Arrow has a car 30km away and no plane. Both Green Arrow and Hawkeye have 50 arrows each with backups at there homes which are both 150kms away. Captain America has his shield and more equipment at his house 150kms away.