tl;dr, great patch, but how do the achievements always get broken?
So far the only glitches I've encountered with this are:
-The moonbase map achievements occasionally aren't awarded.
-If you buy dual pistols of any kind and sell/drop one, you can't buy another one (This has only really come up on moonbase, but it's almost the only map I've been playing )
-ZED achievement is broken obv
-My crossbow bolts seem to disappear on Moonbase.
As far as the zerk balance, I think it's fantastic, except that the chainsaw and machete are too expensive for their utility.