i think the ofense players should rush, at first, to the B m-comm. Attackers have to take vantage that the defense team is separated traing to defend both m-comms. They should always try to take the B one in the begening of the round becouse its easier.
As a defense player, I dont care about the A m-comm, let the other team take it, i prefer to camp on the B one with engeniers on the buildings shooting the LAV tanks and suport people around the B m-comm.
english is not my nature language, sorry about the writing mistakes.