I think that around four years ago, I had Half-Life installed and I downloaded some maps (mods) from https://www.moddb.com/games/half-life/mods. It was pretty easy to install them. I don't remember how I did it but it shouldn't take long to figure out. This will create a Half-Life entry in my Library on Steam, and one additional entry for every Half-Life mod I install.
But now I'm using Sven Co-op, and I like the idea of just having that and only that installed.
So if I want to try a new Half-Life mod that isn't on scmapdb (https://www.moddb.com/mods/hl-rally), what should I do? Should I install it through Half-Life, request for it to be converted and uploaded on scmapdb, or is there a way I can install it myself and play it through Sven Co-op (but just by dragging and dropping files into the right locations, not by converting or editing anything)? If I can install moddb mods in Sven Co-op is there a good existing guide that someone can link me to? Thank you.