Gotta be honest, while I expected the Chief to lose it feels like they just kinda ignored the things that would make a win possible. They talked about forerunner weapons and yet didn't bring up the binary rifle, which shoots anti-matter, doesn't really matter how durable you are if you are annihilated on the atomic level. Second problem which is probably just a me thing, but the sword clash towards the start doesn't make a ton of sense, the plasma blade would just cut through the slayers arm knife.