Did you not read my response? I said that Chief would be too fast to hit whether it be a super, rifle, or any other type of weapon. He was created to be a war machine whereas a guardian is a corpse found lying amidst a pile of rubble who is deemed to have "light". Chief was made for this whereas a guardian was simply salvaged potential. Plus, a guardian would have to rely on pure gunskill and hope they survive long enough to even acquire a super.