The Combined Arms Operations Series (CAOS) uses simultaneous turns to simulate operational level combat between World War II armies across national boundaries and years. Ever wanted to see Soviet and US forces face off in 1945? Or Germany 1939 versus Italy 1942? Here’s your shot. Follow historical doctrines or rewrite them entirely as you reorganize historical armies to match your command style. See for yourself how the Soviet army could perform in 1941 outside the confines of Operation Barbarossa. Mix and match units from across the German army to create the ultimate combined arms kampfgruppe in 1944. Mass enough American artillery to blot out the sun. Whatever your playstyle, CAOS is happy to provide, with more than 4000 unique units and 580 historically accurate division and brigade formations. Scenarios in CAOS are fast paced and self-contained. Players can choose between anything from small battles between a couple divisions that can be played in under and hour, to sprawling army level battles involving dozens of divisions and hundreds of units that can be played across several days. Multiplayer scenarios are synchronous, allowing you to see your ally issue orders in real time, easily coordinate your battleplans, and even transfer control of units between