Half-tracks and armored cars are fast, and may be heavily armed, but they are lightly armored. Just about any anti-tank weapon can punch through their light armor with ease, and may even be vulnerable to machine gun or small arms fire at close range. Unarmored vehicles such as trucks, jeeps, and kubelwagens are vulnerable even to rifle fire.
Light Vehicle Tactics
Light armored vehicles have traded armor for speed. Use that speed to launch flanking attacks, or to shift quickly to support of your other units from positions to the rear. Light vehicles will almost always lose a duel with an enemy tank, though some have heavy enough weapons that you may be forced to use them against tanks in a pinch. The best hope for success in such an engagement is an ambush and a first shot kill. If the first shot misses you’ll usually want to disengage immediately. Try to move away from enemy mortar or artillery fire, as this can damage or even destroy light vehicles.