New DLC for Mass Effect

During E3 it was announced that a new DLC for Mass Effect was going on and now has more info leakd out. 150 new achievements-points have appeared on X360A and they were divided in three pieces and with 50 points each. The first units Undisputed described to be capable of Ahern's survival mission. Next is the New Sheriff in Town that is capable of if you end up as number one in any of the Pinnacle Stations battle mission. The last is the Best of the Best, which is a continuation of the other, but you need to come in first place