I too beat Hangar, but in 6 seconds instead, having also gone for the secret, Xbox-only exit (WadSmoosh allows for this exit to be ran without the patch above). SR50 all the way through (pressing the switch in the armor room, going out to the courtyard, and pressing the secret exit there) *might* allow for a 5 second run, but that's speculation for right now. Figured I'd at least attempt to throw my 2 cents into this without the staff breathing down my neck for it.