User blog comment:BlueChoco/Nexon's Biased Systems?/@comment-5031175-20120620034008/@comment-4260367-20120621090202

BM means Black Market server (You have to have an NX grade of bronze to get in). I think they should remove Q Regen and Fireteam from the SvS exp/gp count since those two modes are probably the most hacked/powerleveled and the two teams aren't directly fighting each other in those modes.