The new game does not feature programmed instruction, instead of requiring a thorough reading of at least four chapters of the ASL Rulebook to play a game with ordnance and/or vehicles in it. Even the most basic ASL components were no longer introductory in nature, although Paratrooper masqueraded as such. (This would be redressed in 2004 by the introduction of ASL Starter Kits). Avalon Hill actually suggested that anyone wishing to play ASL also purchase the original "Squad Leader" and gain experience with that system first, and kept the original SL and three gamettes in print. The necessity of owning boards from these modules in order to play printed scenarios in the core modules of ASL may also have been a factor in this decision. So while ASL was intended to replace SL, there was a certain ambiguity for many years about the status of SL's replacement; the original game was still necessary as a stepping stone to learning ASL, and a source for needed map boards.