This is the first expansion to the highly acclaimed Squad Leader series by Avalon Hill. The expansion includes new scenarios, an additional modular board, revised armor rules, and many new counters representing men, vehicles, and equipment on the Eastern Front in WWII. This series was eventually rewritten and transformed into the monster system, Advanced Squad Leader.Like Squad Leader, the Cross of Iron thirty-six page rulebook is presented in programmed instruction format to introduce its eight new scenarios. Two new quick data reference cards, over 1000 counters, and a fifth 8' X 22' mapboard complete the package.Avalon Hill Complexity rating - 9 - BoardGameGeek