it is mostly true, i have encountered the odd lvl 49 mob, but those are like minibosses, the rest are all 44. There is a mod out there which raises the zombie cap up to a whopping lvl 75! as well as yourself. I'll take a look at it, and see if i can change it jsut to get them to 50.
Mod is over on steam forums Link
[Edited by rcboothman, 9/18/2011 3:46:17 PM]
Fantastic thank you dude, I thought it was just me and my buggy game xD