Jobaria Defense Systems MCL Multiple Cradle 122mm Rocket launcher system live firing by army of United Arab Emirates. The Jobaria MLLRS JDS Multiple Cradle Launcher (MCL) is a 6x6 Oshksoh tractor truck with semi-trailer armed with four power-operated rocket launchers. Each rocket launcher has three blocks of 20 122 or 107 mm launcher tubes, in four lines.