"Angry Angels, Honour & Loyalty!"
Even she is one of the most attractive women of video games, I doubt she would enter the Spartan project...even the Spartan 3.
You know, Cortana can be a jealous b&$%#, sometimes...
Now seriously, let the Halo 3 props where they belong. A Katana in Reach makes no sense as a armour lock in Super Mario Bros.