Hey there! I'd absolutely adore a Clint Barton over at exsilium. I believe the game meets your specifications. A lot of what the characters set out to do comes to affect the game as a whole, and it's up to the characters to decide how they're going to resolve the world issues. There's a decent amount of Marvel characters, but I'd obviously love another Hawkeye. We also have a good-sized DC comics cast, too, if that's more what you're looking for.