I was on tranzit using the M16 the other day and noticed that when there's an ammo count of 6 left in the mag and 66 in the total count, it started flashing slowly. I haven't done the tower of babble yet (can't find a good group), but I'm thinking maybe this might act as a key perhaps when pack a punched to open up a new area or to further the plot? Or it could mean nothing, lol. I messaged this to NGT and DalekJD but I think it would be better/faster to bring this up here to the hardcore zombieheads. Hopefully this will reveal more details, and if this has already been brought up before, then oh well. Cheers.
edit: it could work with any gun, but I suppose it came across to me easier since the
M16's a 3-shot burst.