First off, you're going to need one of those 'tall' crawlers. Open the two doors under the balcony leading to the Alleyway. Bring your tall crawler near about the middle and the top of the small staircase near the Double Tap machine. Get a really light weapon (I happened to be using the Ballistic Knife, but there is other weapons that I'm pretty sure are lighter actually) and stand infront of the zombie at the top of the staircase, facing whichever side of him you find strafe jumping easier. When he yells, wait a slight second and then begin to strafe jump and you will get hit by your crawler. After many attempts you will go flying at the perfect distance and you can land on top of the Double Tap machine. You may or may not need to crouch. I believe I crouched. When you're on top, go prone facing either way and move as close to the wall as you can. **HIGHLY RECOMMEND JUGGERNOG AS THE ZOMBIES WILL RANDOMLY HIT YOU FROM TIME TO TIME!** plz +REP or thank the topic!!
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