I LIKE CALL OF DUTY! It's one of my favorite multiplayer games, mainly because it's one of the very few newer games that still have LAN support.How about a war-themed Saints Row?
The Saints would be a military group, and they have to fight insurgents, militia, and mercenaries in a war-torn country. Law enforcement would be a gendermarie force(like the French Gendermarie). Attacking civilians would be unethical and make you look bad. That's where the Gendermarie comes in.
Say something about Call of Duty! I DARE you!
BUT, as much as I like it, I would not want Saints Row to look like Call of Duty. Dare taken!