What kind of objects and fog should I use to replicate the sewers of the original campaign?
Check how they built the original maps first.
Yes, you can open them using the Level Editor.
Ahhh interesting, I'll take a look.
A lot of the objects are have _corridor, where can I locate these?
STATIC OBJECTS/ENTITIES.
Please use the level editor guide on the wiki or either explore it a little bit yourself, either way it's not so hard.
I meant under what category in the static objects, they ah never mind. Thanks for the help.