I can't freaking believe it. I just played a round of zombies with a friend and he got all of the zombie chievos in one game played on Five. It took me a month to get those. Good for him. I wish I was recording that game though. Oh well.
I have them all too but it took me over a month to get them. He got them in one game. That's what happens when luck is involved. It wouldn't be as difficult if the ballistic knife and crossbow came up more often.
Yeah I know. I play zombies a lot not for achievements, and I never see either of those. However, last night when I decided I wanted to get the achievements those were two of the first three weapons I got :]
I used to like zimobies until these achievements. I have been to level 22 solo on Kin Der Totten (or whatever it is called). Maybe if they make more maps with easier achievements I might play it again.