Hiya,
I was just wanting some help regarding me changing my microsoft account to the old one that I used to play halo on instead of this one that I just made recently. Any help is really appreciated as I would really like to have stats transferred over and anything else that could of been ported 
Many thanks
Hey OP, I’m afraid it’s not possible to transfer stats between accounts or merge accounts together. If you have an account you used to play Halo on then you can switch back to that at any point, but you can’t bring stats with you.
Heya, thanks for the response
So is it possible to create a new account with my old, old email on microsoft and then change the preferred email to one that I have made recently as I’d rather that more than one that was made 15+ years ago and be able to delete this account? Also will this influence anything in game if I get my old account as I used to have the lightning effect and all on my old halo reach account 