So in the Campaign if you get hit too much, Chief will become slower, until you find a health pack. Perhaps also visor cracks and chips and a much higher heart beat sound when his shields go out and he takes damage. Adds intensity and thrill on Legendary.
Why would Chief slow down when hit? He’s the damn Chief! He can shrug of falling from the -Yoinking!- Sky, one to many Plasma Pistol shots are not going to slow him down whatsoever.
Stopping power, hes still only human… or is he? 
I think this would make a cool skull. But not default. Also do we really want heath packs in H4? I’m going to make a new thread about the health pack thing.
> Stopping power, hes still only human… or is he?
if he were only human the game would have ended after he crash landed on halo (everyone in the drop ship died)