I've been trying to get Diamond for the ARs and I'm wondering if you guys believe this? It seems to be for me. Low recoil with a high rate of fire. It has power up close but does lose it at a distance. It is probably the 2nd most effective assault rifle to fire from the hip with. I know the FAL is probably the best Assault rifle but it doesn't seem the play the "All Around" role the Tar does.. Even when you finally get select fire for it.
I knew FMGs would be OP before the game came out: http://www.gamefaqs.com/boards/995751-call-of-duty-modern-warfare-3/59204323
FAL+select fire is a good all around weapon It dominates the SMGs in medium to long range And with the select fire you can easily dropshot, jumpshot as you strafe around like a monkey while getting that potential 2hk