The TN versions don't allow for +mag rolls. They're actually using the correct table (like the named versions) where the FRC one isn't. The bug is actually on the FRC one, but given that its been...
Ark Hunters, it has been an honor and a pleasure to serve with you over these last couple of years, but the time has come for me to depart from the New Frontier.
I've seen reports of similar happening with PvP as well. It seems to be related to effects not being loaded onto the character. It's been really difficult to reproduce, though. If you get a chance...
That's part of why the bugs have a shortened lifespan and the fire rate on the weapons is controlled. They don't spawn that much quicker than from a quick infector.
Not going to happen, unfortunately. The guns are in a good state now, but we're too close to the patch to make additional large changes to them at this point.