Had a thought about the Dumper but quickly realised the vehicle can be used to block large areas like what people used to do with planes such as AT-400. Other than that, police, gangsters and even wanted criminals have collisions so if they were to drive that thing it would ruin the gameplay of other players.
I feel that having these vehicles would cause more bad (trolling) than good, players will find a way to make them a nuisance.
Then those players should get jailed for trolling instead of not adding this feature for players who behave to enjoy.
What's enjoyable about a Cement Truck and/or Dozer?
I like trolling