Found this myself. I looked around the interwebs to see if anyone else has come across this. Not sure if this is a "glitch" but thats what im labeling it as. I was in a public match playing normally and i placed my tac insert the same place i did in the video and when i spawned in i hovered on the truck barrier i guess. Was pretty neat and i got a few kills but died due to not having a suppressor to hide my shots.