Caravans are a common group to meet. They are not hostile and will not attack you directly. If you beat them, you will get whatever they were transporting, however Desert Patrol will attack you on sight. Further information can be found on the Enemies page.
(From Whirled): Do I even need explain? Attacking these will totally ruin your gameplay. Caravans=good. Except for Caravan X. And besides, attacking them is annoying. Use rockets and snipers and machineguns. But seriously, please don't attack them. Like, jeez.
Questions at my account Whirled, or email: firstname.lastname@example.org