It is rare that I indulge in a shooter but I needed to do a bit of "virtual venting". So I pulled out Ye Olde Blood(e) game and shoot me some zombies.
I'm currently stuck in Episode 3 Farewell to Arms in the "Raw Sewage" section (don't you just love it when sewers are a recurring theme in any game genre? I can't get to the Skull key which is supposed to be at the end of a long hallway which I am supposed to be able to cross. However, in my game, that section of the passage is sloped upwards, which prevents me from moving forward, even crouched.
So far, I've:
1. turned both valves
2. Come full circle (beginning of level) through the exploded hole
3. Tried to click on the inaccessible switch on the other side of the grill just before the sloped section of passage mentioned above, but the switch is just out of reach.
I hope this will be clear enough to help jog someone's memory.
Thanks

EDIT: Nothing doing. I've tried restarting the level without turning the valves. I couldn't get very far as the way next door remained blocked. Once through I tried NOT blowing up the cracked wall at the end of the long passage (the wall is near the Skull Key Door), thinking it might prevent the "floor" in my problem passage from sloping. No good. So I blew it up and went full circle again. Still no joy.
EDIT 2: I finally found the problem. I was blocking just as the slope levels off (I snuck an underwater peak). All that was blocking me was simply a well-time jump at that specific spot. Stupid me... Oh well. Onward...