(1) Ready to go 'round and 'round again? You are now back at the PILOT'S CHAMBERS. Move out, grab the derm patch to your right, and then continue clockwise.
(2) You will find another derm patch en route to alcoves 3. There is a single young dog in the left recess, and 2 flame thrower canisters plus a pair of derm patches in the immediate area.
(3) There is a single patch in alcoves 4, but beware as you grab it! Moving into that recess reveals a hidden room housing 2 young dogs; simultaneously, 4 more young dogs appear behind you. Your best hope is to use the smartgun to kill the 2 young dogs directly ahead and then dash into the secret room (grabbing the acid boots) and pivot to deal with the rest. At this point you will want to hang onto the smartgun rather than switch to the pulse rifle because 1 of the dogs will try to leave the area before you can kill it. In this room are also a med kit and 2 flamer canisters.
(4) The next alcoves house the exit on the right (4 young dogs are within) and a single young dog and a derm patch on the left. Don't reveal the exit door just yet or you will have to kill these 4 enemies all over again when you return later!
(5) A single young dog and 2 derm patches lie in wait near alcoves 6.
(6) At the next pair of alcoves you will be attacked by another young dog, but will find a derm patch and med kit. Touch another derm patch you find within the left recess and 1 young dog materializes in the main corridor; eliminate it.
(7) Moving past alcoves 8 (where you will encounter 3 young dog aliens and find 1 med kit and 1 derm patch) brings you back to where you started.
(8) Continue clockwise to deal with 2 freshly-materialized young dogs at alcoves 2. A single new young dog (plus the one you killed earlier) await you at the next pair of alcoves. Dispatch them. Now continue ahead to the exit, killing all revived enemies as you go as well as the 4 young dogs within the exit chamber that you left behind earlier. You can wax these last 4 young dogs in 1 shot if you are quick and use a grenade--make sure you aim down or it will pass right over their heads.
(9) Don't leave just yet, though! Move ahead to alcoves 6 to grab the newly-appeared grenade on the left (although this stubborn powerup, for reasons unknown, does not always materialize), and then make good your escape.