Thanks for those, I played these with my co-op friend. The white map was way too hard for the bald guy character, the dash attack didn't kill the enemies with one hit, so he got downed all the time.
But black worked really well, it's good that the money is added together with your co-op partner, so you both get around 35k gold in 15 minutes.
2 GSL wins in a row! You do that.
GSL 13 starting score: 330,305g | 100k - 24.8.2011 | 200k - 2.12.2012 | 300k - 1.12.2013
My top 10 shooter completions: Gears of War 3, Max Payne 3, F.E.A.R., F.E.A.R. 2, F.E.A.R. Files, Rainbow Six Vegas, Warhammer 40k Space Marine, Gears of War 2, Legendary, Left 4 Dead 2 (Realism Expert legit Dead Center & Hard Rain) | XBA shooter leaderboard: 141 727g (8th)