From Halopedia, the Halo wiki
The Trooper Warthog boasts much thicker armour plating around the vehicle, including armoured doors to protect the crew of the vehicle painted in a black-and-white dazzle camouflage pattern. Currently-observed vehicles have been seen in a Gauss Warthog configuration, sporting an M68 Gauss cannon.
The Trooper Warthog Blitz card has the following attributes;
The Trooper Warthog is classed as a Core Vehicle, and performs well against Infantry, Vehicles and Aircraft.
List of appearances