OK, so this idea is far into left field but it would be amazing.
Bulldozer to level ground and knock over objects like walls and trees - could be come a great pvp vehicle
Paver to put down asphalt over terrain to make new roads and it could fix pot holes as well
Excavator to dig down deep this could be used to knock over tall structures as well using the wrecking ball vehicle mod instead of the bucket
Dump truck moves large amounts of materials like stone ore and clay
All of these are slow moving and attracts huge amounts of zombies while in use
These could be a Tier 6 found object reward
Bulldozer to level ground and knock over objects like walls and trees - could be come a great pvp vehicle
Paver to put down asphalt over terrain to make new roads and it could fix pot holes as well
Excavator to dig down deep this could be used to knock over tall structures as well using the wrecking ball vehicle mod instead of the bucket
Dump truck moves large amounts of materials like stone ore and clay
All of these are slow moving and attracts huge amounts of zombies while in use
These could be a Tier 6 found object reward