Possessing good load capacity and mobility, Mule was specifically designed for various reconnaissance operations by the SSPP in the Zone. Thanks to decent protection against anomalous threats in its category, it gained popularity among both military stalkers and regular stalkers. Some green stalkers, who come to the Zone for money, strive to join the military stalkers to receive a government-issued Mule from the SSPP. However, such smart guys quickly face the high requirements for recruits.