I still don't understand how you can replace a LMG with a rifle (with add ons like heavy barrel, "rails" and a piston) it's still a rifle. The 249's that do have a tendency to jam are probably decades old. They last forever, the solution of course is build new SAWS. +1 for not changing what's not broke. KEEP the SAW's and give the drums and 100 rnd mags to the other riflemen, I think that would give you more options, having a dedicated machine gun and having the ability to change a rifleman into a more precise machine gunner