[header] How to effectively take out vehicles in halo 3 [title] Know the location of every vehicle in each map. [step] You will better understand and expect where a vehicle would normally come from. [title] Decide whether or not the manned vehicle may jeopardize the game. 
[step] Ask yourself, " is this vehicle really worth taking out? " it depends on what type of vehicle they're using and where the driver is located. For example, a manned ghost roaming around the top surface of snowbound may not really prove to be a major threat if everyone else is fighting underground.