They should have stopped making Halo games after 3, honestly... The whole story revolves around one war. Going beyond that just makes everything feel contrived and like beating a dead horse. If you want more games, just set them during the war. Like with Reach, ODST, and both Halo Wars. There's so much stuff we haven't seen. The war lasted TWENTY-EIGHT YEARS. Halo 4 was a soulless cash-grab, Halo 5 was a soulless cash-grab that was also a horribly-written fanfiction penned by middle-schoolers in adults' bodies, and Halo Infinite... Even just the blurb for the campaign trailer, "Earth is under attack..." OMG, STOP.