Weapon Randomizor Sucks Balls Man

Seriously, at first it was like "Oh dang! I got a hand gun in exchange for a machine gun, darn."
But this is honestly just a stupid setting or whatever you have it set at.
Way too many ♥♥♥♥♥♥ single shot weapons given deep into waves.
I've had very good runs ended because I'm out of ammo, on the run from a group of 20-30 soldiers, and I come across a weapon randomizer before ammo, and I'm hit with a ♥♥♥♥♥♥' magnum and die instantly not being able to properly defense myself.
Please adjust/fix this.