@iratoric which North Africa game? AFAIK some of the variations are mutually exclusive. I think the first task it is to identify which variations should be plausibly supported. Once done, I would like a full spec identified. Following, we can then look at the plan for how that would be encoded into XML. Doing so iteratively and not all-at-once is perfectly fine. Though, I think we should know beforehand which retreat variations we are likely to want (and also in which maps).