Vosla does some arts (comic) and voice acting (german & english). Otherwise he is quite unremarkable except for the amounts of Cola and pizza he consumes.
Still at my whacky recreation of sewer level one from "Eye of the Beholder" in Half-Life using Paranoia mod.
Left upper corner:
If you manage to climb on the rubble pile blocking your exit, you see the entrance and parts of the city. Actually, you shouldn't see this.
Right upper corner:
Run into some zombies. Shh! Wasn't something moving in that grate?
Left lower corner:
Yay! Light! An exit... awww... NOT!
Right lower corner:
That's the real exit. Hmm, there is something odd in front of the grate. But there is a button on the wall...
Overall, knifing the zombies isn't much of a challenge with plenty of stim and health packs lying around. If you get the pistol, you are scot-free and the zombies are no threat any more. It's a dark map, you constantly have to use the flashlight and might get a bit confused by the layout of the dungeon and some moving walls and traps.