After searching for a bit, I found the thread to post this in. I do speed runs on console and this skip happens every so often. Like maybe 1/400 attempts. But it has happened like 4 times in a row. So this leads me to believe that it can be recreated some how. In stage 2, at the second set of tanks, after killing one, you can skip the second. I don't understand how it works but I would really really really really love to know how to recreate it.
I don't see a way to post a video at first glance, so I will link to my post at SDA with the videos that can be downloaded to help out. If this is against the rules in any way, I am sorry.
http://forum.speeddemosarchive.com/post/super_c_calling_for_any_one_who_can_help_see_page_22_540.html
You do not need to be a member to view or download as far as I know.