In my, and a significant portion of the Halo community, opinion, Forge can only do so much to save Halo without split screen. Try to count the hours you sat in Forge in Halo 3 or Reach just messing around, having ghosts play “tag” on Sandtrap, making obstacle courses, and then trying out the new maps and gamemodes with a group of buddies. It’s a lot. I played instant-respawn Octagon in Halo 3 with my friends for HOURS some nights, just sniping, sometimes doing Fiesta settings, etc.
343i can give us a powerful Forge, and I’ve said that Forge is the single best thing to come out of 343i since they took over, but without support like File Browsing, split screen, gametype options, etc., it won’t amount to anything.
About 9 months into Halo Reach’s life, Bungie was surprising us with a Chess gametype to forge with. Seriously. Did we need it? Not one bit. Was it hilarious to try for a few minutes or hours? Yes, of course. But that was the state of Reach. They had the most gametypes of any Halo in Matchmaking (unofficial count, but hard to top it…Stockpile, Headhunter, KOTH, CTF, Slayer, Grifball, Race, etc.), and they had the best custom game options of any game. They could afford to literally make a chess gametype. But look at Halo 5 and 343i: 9 months into their game, and they release a statement saying, “We realize it would be easier to have random weapons be a universal option, but that would require too much coding, so we’ll just release the individual gametypes with Fiesta settings in the mean time.” They literally haven’t figured out how to make random weapons a universal thing, so they clutter up the UI even more with unnecessary gametypes like Fiesta CTF and Assault, all the while prohibiting us from actually CREATING anything worthwhile.
You can harp on Bungie for going for the cash grab with Destiny, but you have to admit they knew what they were doing with Halo and had trajectory with each game. 343i seem to take 5 steps back for every step forward.