Playing as Wrecking Ball on route 66, i was able to roll up to the spawn door AT THE TRAINS for the enemy team BEFORE the match started, Balls LEGS POKE THROUGH the enemy team spawn door ALLOWING them to kill hamond BEFORE match started. I have done this several times to replicate it, and can CONFIRM wrecking balls legs poke through SPAWN DOOR on route 66 allowing ENEMY team to kill wrecking ball BEFORE!! match starts.
Good thing about this is that before that match starts, you don’t get ultimate charge.