DLCs needed for scenarios?

[Celeborn]

Is there a way to tell which DLCs are needed to play a given unofficial scenario or campaign?

Am I even asking the right question?

[bebro]

For custom cams with maps made from scratch you'd just need the most recent patch to make sure you have units and other stuff that those cams may use.

I dunno if any non-official content uses the official DLC maps - then you'd need the DLC they were made for. But this should be mentioned by those who did those campaigns or scenarios.