marine sergeant

Intro in the middle of the war (human and covenant war) on one Halo ring there is this girl and you serving the UNSC (you are a boy or any other gender you want to be) (you can be a Marine or a ODST you choose) (and one last thing this all takes place and either you can choose Halo CE Halo 2 Halo 3 Halo 3 ODST we don't talk about Halo 5 or 4 or infinite)(one more thing she is a marine sergeant and you are a lieutenant)