These rules are part of the Axis & Allies Global 1940 2E, House Rules Expansion.
Some basic units from the OOB G40 rulebook have seen a cost reduction. This is due to the multiple new units & rules that are included in Axis & Allies Global 1940 2E, House Rules Expansion rulebook.
6. G40 Cost of all units, page 1.pdf
6. G40 Cost of all units, page 2.pdf