I like it. No flat tires, and you really don’t have to worry about the paint...
I would get one of those military pieces of equipment that is used to detect tank mines, has that big flaying series of chains on the front. I can build one easily in a couple of days being a hydraulic fabricator.
Next choice would be one of those Caltrans front auger snow removal machines from the Sierra Mountain highways. Overall vehicle must be armored enough from a mass attack, explosion proof windows and an exterior fire suppression system.
Obviously the vehicle must be able to clear a path up front so it must have a means of collection bodies and ejection them either whole or in puree form, then the vehicle should have a strong defense like any outside hatches being polarized with high voltage.
And then there is offensive firepower, I may stay awy from using bullets unless I had no less than four Dillon 134 miniguns at each quarter of said vehicle, ammo weight tends to be problematic so a primary weapons system instead will be a modified multi barrel paintball gun fed from on board air supply, and these won’t be normal paintballs, actually they won’t have any paint.
Contents could be acids, gas, white phosphorus and even napalm. Even ping pong balls filled with hydrogen.