But the core game is the same: the match engine, while tweaked is still the one pertaining to the third edition, while the customizable schedule for training, and the tactics system have pretty much remained unaltered. The additions are the American MLS and a new championship, the World Club championship. The previous game in the series, Championship Manager 3 is still used as the core game for this update, but Championship Manager: Season 99/00 contains a few new substantial additions.
USA MLS leagues and World Club championship update
