3rd secret in doom_detention

[ViP_RaVeN]

hi guys, after running through the level 3 times i need to be spoiled:

 

i got:

1) the secret at bottom of first hangar elevator

2) the secret right after the crate above the closed door, where u have to jump on those pipes

 

i need:

the one i am missing

 

pls help me, thks :-)

[Perry Rhodan]

examine the detention cells more closely...

[ViP_RaVeN]

uh, took me a while to find the thread, heh.

 

damn, i thought i took a close look in every single cell ...

as another guy posted a site with all secrets, i saw where it should be, thks for you help :-)

 

thrilled like hell what it looks like and why i missed it ...