It sometimes feels like Bungie tried so hard to make Destiny different from Halo that they forgot what made Halo such an amazing FPS. For instance, Halo 3 was extremely popular for years after its release because of its well-designed multiplayer. Halo 3 had over 12 ranked and unranked matchmaking playlists, including big team battle, team slayer, team doubles, team objective, FFA, etc.; Destiny 2 multiplayer has no skill-based ranking system and only 2-3 matchmaking playlists with very little gametype variety. Halo 3 let you forge customized maps and create custom game types; I don't think Destiny 2 even let's you play private matches. It sometimes feels like matchmaking is treated like a secondary feature on D2. A decent ranking system, more customizability, and a wider variety of matchmaking playlists would greatly improve the PVP experience on D2 in my opinion.