3. XM25 Smart Grenade Launcher The XM25 Counter Defilade Target Engagement (CDTE) System, also known as the Punisher and Individual Semiautomatic Air Burst System is an air burst grenade launcher derived from the XM29 OICW. It was fielded to soldiers serving in the War in Afghanistan and was projected to enter full-rate procurement in 2013. However, the Senate Armed Services Committee eliminated all funding for the XM25 in its revision of the Pentagon's budget in June 2013.