Did a search and couldn't find anything about the demolisher and this.
If you get the demolisher in WG, it can go through anywhere you can walk through as a normal character.
You can also run up towers with the vehicle.
This is nice when a tower had been destoryed and you have the other faction bottlenecked.
The second screenshot shows me hanging off the edge so i can shoot at stuff that is closer to the towers.
This works good for tower defense when you are on offense also.
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