There have been 1 or 2 posts about this in the past, but none of them included screenshots or videos, just cryptic paragraphs that were hard to understand, and they were from a while ago. This is to confirm that it works now, and to confirm that it works in arenas.
Here is an exploit that could be very useful for any 2v2 team where both partners have a mechano hog going against a rogue team
[ame="http://www.youtube.com/watch?v=daCbnvZnZXU"]YouTube- [Arena] Mechano-Hog CC Exploit[/ame]
Step 1) Get sapped by a rogue
Step 2) Jump in your partner's mechano hog
Step 3) ????
Step 4) Profit