(adsbygoogle = window.adsbygoogle || []).push({}); Go to the window where you activate the Fly Trap.

Look outside, below the window barrier and press X on the books - one has a front cover of the '935' symbol.

well I did it on single player - not sure if it works online

if you don't know which books - go to fly trap place - books below wooden boards where zombies break thru

Different characters will say different things.

I've only tried it with Dempsey on single player - he grunts and says that he doesn't like to read Nazi shit.

Wait about 20 seconds then press X again and the characters will say new stuff.

Haven't tried Nikolai, Takeo or Richtofen yet.

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Yeah they usually grunt when you around clues or messages of some sort in the beginning you will notice the grunt to the left of the main frame cause of the paper under in the sewer part in the garage beside the paper they are all clues or a page from a book that have to be put together.

Yup group 935 were the people that experimented with zombies and hellhounds in der riese.

Hmm I'll have to check this out in a bit