Was playing as mechromancer.. wasn't the host. but ended up jumping up a piece of geometry and got a speed boost of 3-4x the normal sprinting speed. The location it happened at Tundra express and exactly at this location: https://steamuserimages-a.akamaihd.net/ugc/785233299591767110/55522A6AE7DC2D9A9C861B86D733CED07068A591/

The speed boost lasted as long as I was sprinting. I haven't been able to replicate the speed boost again.

are you sure you didn't just activate unstoppable force? otherwise, kind of sounds like a proxy combined with offhost fuckery. if you manage to replicate it, though, let us know.