The first level where we have a blatant glitch! It is impossible to access three rooms (I shoot the wall beside them a great number of times just to show where they would be found). This means that the normal maximum that can be reached is 22 and not 25 (3 Grunts are in those rooms).
Otherwise, this level is rather bland. It has a great number of twists and turns which makes navigating it confusing if it is your first time. The dark section in the middle with the Fiend doesn't help.
