EDIT: THIS NO LONGER WORKS AS OF 3.2 (8/4/2009)!!!
Ok, I did a search and could not find any thread about this (it is a fairly recent change I'm sure)
I did nearly a dozen runs tonight to make sure it is repeatable, before I made a video and typed this up. It is legit, no mpq edits or extra programs used.
The basics of this: if you open up the supply crates (either check the loot, or DESTROY them by spawning bugs or the disease cloud-note they must be destroyed by repeated clicking if they have no loot), the crates in strat UD near the Magistrate open up the abomination gates.
Once you get inside the abomination area, opening/destroying the supply crates in there open up ramsteins door, and baron's door.
From what I have seen you do not need to destroy all of them, 6-8 seems to do it.
I realize baron runs are already pretty quick, and you do lose gold if you are an enchanter...but, not having to kill anything but the bugs and baron himself gives you alot more time to do 5 runs and then logoff and do other things.
[YT]dATE2-wuOX0[/YT]