User blog comment:Callofduty4/CoDWiki news - October 2nd 2011/@comment-4207733-20111002182014/@comment-1902548-20111002204903

OMA isn't the problem, it's the OMA with under-barrel grenade launcher is the problem. I personally use OMA for my LMG for faster reloading and replenishing ammo. Second Chance is easier to deal with than Ghost, as I primary use Olympia/Stakeout and I really need the radar advantage (as an added note, shotguns by-pass SC).