Not sure if this WW option has been suggested or discussed.... I think it may be good to limit the "attack down" to 2 ages in WW. For example, Info Age base in WW can attack down to Digital Age and Space Age but not Cold War Age or below. It may help in balancing a WW team on players to bring to a WW, and may also provide some strategic thinking on attacks. In MP, we are limited to 1 "attack up" and 1 "attack down" except for Info Age since there is no age above Info Age. For example, Cold War Age can attack Space Age and Atomic Age and anything in between.