It's not a very frequent occurrence, but when sighted in with a weapon and firing on single fire in a rapid manner, there is sometimes a short stutter or freeze. For example, using the M16A4 and firing rapidly while ADS, a few rounds into the magazine the weapon will stop firing altogether. It takes a few clicks to get it firing again, but that short freeze is enough to get you killed. It's not a very large or game breaking issue, it would just be nice if you guys could look into it when you have some extra time.