Who knows - maybe the character is completely insufferable throughout. Maybe she's exactly what you say she is. I'll likely never know, because I have a near-zero percent chance of ever actually playing the game. I'm talking about one isolated snippet of dialogue, which you posted here. And as I said, as a former Halo fan, deep into the "lore," this chick badmouthing the Chief is completely right by the canon. The Spartans got shit from basically everybody, and were considered disgusting freaks of nature by most of the "elites" who feared being replaced. Only the rank-and-file idolized them at first.
I know for a fact Halo Studios is full of rainbow-haired idiots who have already gone on-record saying they hate the franchise, however, so there's that.
Still, I'm almost equally sick of that Critical Drinker bullshit in which every single female character with skill or an attitude is immediately labeled a "girlboss." It's not "based," it's a negativity grift. He's a one-note assclown who probably got dumped and never got over it.
I mean, movies are kinda for losers, anyway.
Should've just given this franchise to id, then immediately shut down 343/"Halo Studios."