Sprinting is a good thing because in reach everyone just picked sprint as their ability, and why should Spartans, who are apparently the most in shape people the UNSC has, not be able to sprint? To me it sounds like you play this game way too much and are way to concerned about little things. If you're getting killed by the boltshot so much why don't you use a magum or your primary and kill them before they get in range? And if you're this concerned about the game then just don't play it anymore, nobody's stopping you.