Modified for desert use. Thermal safety for crew and further cooling for engine and equipment. Tracks adapted for lowered wear in sandy situations.??? ???? ?? ?? ?? ??????? ??? ??? ?? ?? ?????? ????? ?? ??????? ???? ???? ???? ??? ???? ????? ???? ??? ?? ??? ??????? ?? ??? ???? ??? ???? ????? ???? ? ?? ??????? ?? ?? ?????? ?? ??? ???? ????? ????? ???