This is another fun map but there's a couple spots that are really RNG. First is the spectre in the narrow hallway before red keygrab. He very rarely gets completely out of the way and that's gotta save 2-3 seconds when it happens. Next is after red keygrab the imps can sometimes lower the elevator for you leading to a quicker exit. Enemies can also open a ton of different doors for you so sometimes it may be worth keeping them alive.

Main change over Thief's route is to grab chaingun in the opening and use that for most of the run.