Games that just use maps and mods wouldnt be a scenario to me. Not if the map can be used without the mod or the mod can be used with any map.
It would need to be more like "Antilarium" map and mod combo
http://forum.shrapnelgames.com/showt...524#post630524
where they are designed, and pretty much require, being used together. Same with game parameter switches. Or maps that require certain nations be used for purposes of scenario such as well-fortified and improved AIs.
Part of the failure of the "scenario" command for Dom3 is that it should allow setting all of those, and enforce their use instead of having to include lots of instructions and warnings to make it work as single download package.