there bunch of R.A.S.C Units

Grinder Room

Ignore the aperture logos

Loader walking pass

There bunch of Endos trap in the staff bot Repair Station

incinerator room

You need find a fuse to open this door

Press the button
To activate the arm to grab a fuse on the shelf for you

It's very dark and cold here

that a scanner up there

this is Upgraded RASC It can be useful 

this endo name is project 12 aka Monster endo