THIS IS NOT MY SOLUTION. This is "Ultamisia's" Solution that had been posted in the comment section of "New Paralyzer's" solution. It took me a while to find it, so I'm posting this as a separate solution for people to find more easily. If s/he is going to claim it, I will delete this one.
- Go to hard Torment
- Get smacked around to build up "Punishment"
- head towards the highway towards the east
- Since you have punishment active, jump
toward a very fast moving vehicle so it detonates you up in the air (do not ragdoll with
- since the highway bridge around that area will always spawn vehicles, unlike the other activities that will despawn a lot of times, just aim and bounce/detonate on the vehicles, move forward a bit in the air and try to land on incoming traffic.
This worked for the first time, whereas any other solutions simply did not work.