Must have been a rule on the age of games checked, because there's no sign of SWAT 3 or 4 on the list. That was true co-op play, & even in the "deathmatch" style games a team was rewarded more for arresting an opponent vs. just killing them (1 point per kill vs. 5 points per arrest). Not to mention the very different "VIP Escort" mission, where the Tangos couldn't kill the VIP before a) arresting him & b) the 2-minute timer reached zero; killing him before that point lost them the match.