So far there were no problems, all party members at the front have protection of about 90 (after "Shield"). Some guys were tough enemies but I had no dead party member during the whole run until then (party level 9 now). But then came zombies. Before I could realize it they killed my rogue within the first attack round. Could this be true? Is protection 90 worth nothing against some monsters?
I read about some guys talking about protection 100 or higher but that's not really a choice for a quick and deadly rogue. (In my imagination a plate mail rogue isn't really an option

Can those guys really attack so hard that they can kill a level 9 ratling rogue within the first attack round? Or was is simply bad luck?