Two of the most famous comic anti-heroes vs two of their greatest adversaries.
All combatants are in character.
Teams will operate as though they work well together, and have prior team chemistry.
New 52 for Batman and Deathstroke, and so there is no debate on this Wolverine DOES have his healing factor.
This battle operates under a shared universe concept, all characters know of one another and what they are capable of.
This battle will start, but is not limited to, a generic city parking garage at night. They start on the ground floor, and there a several, not many, parked cars. Some of the lights work, some don't.
The parking garage and surrounding city block are unpopulated. The street lights are on.
Combatants will start 100 ft apart.
Both team get two hours to prepare for the other team.
Fight is to death, incapacitation, or KO.