@[Unintelligible] There a lot of MVM mission files in Item workshop and I see at least 2 pros with this:
1) This population files would not be mistaken for another map or repost of old one, because they are separate thing.
2) It shows intention of uploader to Valve that they wanted to be in-game, because Items, unlike Maps, can't be downloaded from Workshop and solely on Valve's mercy.

So why is this in the items category? Shouldn't it be maps? This and all 5 of the others you posted show up in the items workshop. Probably not what you're looking for.

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