Scarab is covenant tank which basically wouldn't be a very ideal thing for blockland.
1 of the reasons being is the collision boxes-
If it's a vehicle, then you could animate the legs. Problem with that is, you CANNOT animate the collision boxes that cover the legs.
If it's a bot, then the collision box is going to be large enough that it wouldn't really be fun to play on. There's a good chance a 5x height brick could stop it or something along those lines.
Massive vehicles like these in blockland aren't all that ideal. This game runs on and old engine, and because Badspot and Kompressor said they worked at GarageGames(developers of the engine) for a while, they said upgrading the engine would NOT be a good idea.