Correcting mistakes

If we use halo Legends as canon there would be other female Spartans with green
Mjolnir
A few possibilities
Gender bent Halsey and John 117
Obscure Spartan and Scientist
OC characters that are basically gender bent Halsey and John 117

I mean, if it was John she'd have red hair since Master Chief is canonically ginger, blue eyes, red hair, freckles and all.

Perhaps they took creative liberty? There's not much of a difference.