Halo Reach Glitch Help Please

By now, I’m sure you’ve all heard of the glitch you can pull off in winter contigency, and if you haven’t, I’ll explain.

Winter Contigency, At the end of the mission, right to the cutscene, in the black or little before, either way, you pause and save the game, because you can as that is the glitch. Then when you start up, it’ll take you to the cutscene or wherver you saved, me, I saved just right so it’ll appear black and count as I finished it.

Anyhow, I was just curious, would me having Iron Skull on stop that glitch from happening, I don’t want to find out myself because I currently have a save game I don’t want to get rid of…

Any idea’s?

Works on Legendary to Easy with skulls but I didn’t dare do Iron as I knew it alone makes you start the whole mission again instead of checkpoint but does it if you save and quit take you to a checkpoint? just curious…