One of the rules in the server is no DriveBys. This is a guide on how to avoid being punished for a DriveBy (DB)
Drivers may NOT attack any of these: Players
Drivers are ALLOWED to attack these: Drivers, Passengers, Vehicles
Passengers can attack EVERYONE!
Players on foot can attack EVERYONE!
Basically, drivers may NOT attack anyone that isn't inside a vehicle.
If a driver is caught attacking someone while they are on foot, they may be punished.