This isn't a official run of the level. It has an FOV mod installed and is therefore not legit according to the rules of HaloRuns, but that's fine. I just wanted to do something different and challenging!
I got really lucky in several spots on this level, but lose about 2 minutes around the 7 minute mark, where most of the fighting takes place. This run can easily go down to 12 doing the exact same route. And I know some rooms aren't perfect and that I take unnecessary detours, but this was only my second run though the level and the previous one was on 28 minutes, so, not all that bad.
Not really sure I picked the right weapons to bring inside, but hey :P