Paintball is more focused on individual actions, and just spraying anything that moved with paint. It wasn't a real military simulation by anymeans of the imagination... Airsoft has a fundamental basis on being a true military sim... Games usually last around half an hour, with certain memorable games lasting up to an hour and a half, which emphasis on teamwork, coordination, communication via radio, and other military tactics such as suppressive fire, leap frogging and the like. It's far, far more realistic militarily speaking (well, more real than just about anything with exception of maybe, warfare).