Finally got it!

Fixing yesterdays fix

I missed one NPC, Last update to fix AI Disabled. I promise no more AI disabled, I got them all!

Removed a few Autosaves and auto-killed NPCs in an effort to eliminate "AI disabled" after loading from Autosaves
Increased lighting in the vents.
Added a short cinematic at the end of the map.

Added final battle
Made it harder to fall if the player made a mistake while climbing

Gave your hero more things to do

Making it even more clear where to go, heavy handed hints without spoon feeding... just follow the red.
Fixed an issue that would cause the game to crash when the game tried to autosave while the played had an item in their hands.

Made it more obvious where the Pistol is located once entering the correct room.

I think I fixed the audio for my HLA version of the L4D2's witch.