When using the Grendal, if you're getting hit with an automatic weapon, the Grendal will sometimes not fire. It works fine when you're not getting hit with bullets. I've had his happen a lot while facing someone with an automatic rifle in CQC. Anybody have this issue? I recall having 2 or 3 bars for connection. I apologize in advance if this topic has been covered already.

Switching over to semi-auto mode solved my problem.