There is a few ways this could be useful, will be posting them when I find a way this could be useful. You can pretty much go through anything as long as there isn't a invisible wall between you and the wall. Tried in the tutorial but you need to do all the objects and the game will bug out during "Clear the area around the vehicle" if you just skip pass everything.
You just need to get grabbed by a zombie and as soon as you break out of his grab, spam the roll button.
You can also boundary break with bottles but im 99% sure it only works on gates and railings and its also semi difficult to do.
With Level 2, just tried it, you can use your boundary break and to fix the issue just reload checkpoint. So you can do all objectives by the police car instead of the linear pathway but it's just about if that time save is faster than a reload but either way may be worth looking into.
I just timed it and it would be slower to do all the objectives by the car and reload. Still worth looking into though
Another note - not tested thoroughly but the boundary break is more consistent if both the player and the walker are hugging the fence, you can tell it's worked because the players foot will be on the other side of the fence. So in other words you want to be grabbed with your side to the fence.
