Board Thread:FAQs/@comment-26395021-20150519000208/@comment-25396609-20150519031643

If I recall correctly, legendary difficulty would be considered cannon, and in most of the games legendary means grunts don't flee until they're 1 hit from dying, at which point almost anyone would flee.

also keep in mind that, even if they do bitch out almost immediately, they do start off pointing guns at you, which would be considered threatening.

Nora, on the other hand, would start off by doing her 'Ooooh' thing and fluttering around whatever spartan, which would throw them off guard considerably.