Anti-Aircraft Vehicle is the ranged unit of the Contemporary Era. It is trained in an Air Defense Factory. These units have bonuses against Fast and Light Units and a bonus when on Plains. They also possess the special ability of contact!. Anti-Aircraft Vehicles are preceded by MG Team. They are vulnerable to both Heavy Units and Artillery Units.
Although it looks like previous fast units, since it is a Ranged unit, it does not benefit from the fast unit class's and can move on rocks and trenches. It is still effective vs fast units due to the combat bonus of ranged units vs fast units. The Anti-Aircraft Vehicle is basically a mix of the Postmodern Era ranged unit with the Postmodern Era fast unit.