June 23, 2014. EXLOG Wargame is a USMC annual exercise that typically takes place during the summer months and has been occurring over the last 8 years.  The Deputy Commandant of the Marine Corps for Installations and Logistics (DC I&L) is the advocate for the Wargame.  Its purpose is to demonstrate improved Logistics Chain Management (LCM) and Command and Control for Logistics (C2 for Log) operational capabilities in order to guide I&L’s advocacy efforts and future resource investments.