Make ParticleAttachment public Hammer.Skip works for enum fields Engine's string to particleattachment type supports string numbers Model.GetData<>() supports deserializing to enums ModelParticle class uses ParticleAttachment enum Merge ModelDoc.ListAttribute into ModelDoc.GenericGameData, and rename it to ModelDoc.GameData Demote Model.TryToGetData()'s error to a warning Update base_modeldata.fgd