Seriously, at this point I gotta just stop playing survival until you can fix the weapon randomizer.
It's extremely rare you actually get a weapon that will help you go part wave 10.
It's very frustrating building up your points to be given 3 pistols in a row, then maybe a shotgun or an mp4 once in awhile with more power, but still not nearly enough to fight off a group of 10-20 soldiers.
or rename the weapon ranomizer to Single Shot Randomizer.