Master Chief has weapons from the 29th(?) century, weapons that are far more capable of killing than a laser beam If I'm correct, the Halo Sniper Rifle is able to punch through some 5 ft of steel, meaning it's able to punch through Iron Man's suit Chief was also trained since 6, master at all forms of hand to hand combat, has a suit of titanium and gel shielding, and as well can flip a 7000 pound tank with ease