I built my Blackjack BJ-1 with 2x RAC5's and had a total blast, but the mech is bonused for AC2s, so wondering if there's a better Medium mech out there to maximize RAC5s?
Bushwhacker-X2 is pretty good for it. 2xRAC5, + 2xML's if desired. It has great yaw, so you can move almost perpendicular to the opponent while keeping your RAC's blazing on target.