I psyched myself out. I pretty much made a mad dash from the main hall to the break room area to the parking garage and prison cells in about 2-4 minutes. I only got hit by Mr. X once and bit by a zombie once. I still have 13 Lightning Hawk magnum bullets left. I shot all the dogs in the kennel the first time I went around so the parking garage was smooth sailing for me. The power circuit puzzle was easy and the rest is history.
I just made it to the Sewers with Ada Wong. Time to face the Alligator.