Well I get about 230 exp from a fireteam win on extreme and about the same amount of gp. But that's taking into account 75+ kills and 0 deaths without hacking and the 40% point gainers for both.
Quarantine mode is ok I guess. People will say you're power leveling but my argument is how can you prove someone just doesn't suck that bad? Nexon can not force you to get kills. Just nade yourself or whatever. Still get around 200-240 exp.