To make a map for HLADM, you must follow these guidelines
Make sure the following models are in the map(I recommend you put them in the middle of nowhere)
- models/creatures/vortigaunt/vortigaunt_tunnels.vmdl
- models/characters/alyx/alyx.vmdl
- models/characters/hazmat_worker/hazmat_worker.vmdl
- models/characters/eli/eli_end.vmdl
- models/characters/eli/eli.vmdl
- models/characters/combine_grunt/combine_grunt.vmdl
- models/characters/larry/larry.vmdl
- models/characters/metrocop/metrocop_choreo.vmdl
(for precaching reasons, if you don't do this players models will not load)
These map guidelines will be changing a lot during development!
And that's it! If your map is good enough, it'll get officially added into HLADM!