I’m with my buddy right now on split screen. We started Halo 2 Legendary, with Boom, Ghost, and Grunt Funeral skulls on only. Everything was treated as if Iron skull was on. (One player dies, everyone restarts the checkpoint.) So we restarted the level (1st level) after double-checking that the skulls were what we thought they were, and didn’t have to change any setting, and then restarted the level and the checkpoint was gone. In previous Halos, Solo AND Co-Op checkpoints were saved.
So in this post I’m reporting 2 glitches.