migrating my game scores and saves

Sorry, but nothing can be transferred between accounts.

Happened to me about 5 times! Top of the leaderboard migrates host and there goes all my match score. And my dogs!

I've had a lot of strange stuff happening with migrations in dom, dem and ctf.

I've had matches where we won the first 2 rounds, then wind up with a tiebreaker round and lose. I've had captures missing from my score at the end of the match, and I've had times where there was a migration, and find myself in what appeared to be a
different match altogether with my score intact..

Nothing is transferable from one account to another including; gamer score, Live time, ms points, download content and certain game saves. The latter is only if the game developer allows this to be done and if it can the ability to earn achievements from
that save are disabled automatically.

If the console you are on is the original purchasing console then all accounts on the console can share content. If it is not the original console then you will need to perform a license migration which is linked in the post by ngocphi above. It is a quick
and painless process but you will need a computer to begin and complete it.

I've had similar experiences with scoring issues during a host migration. When the game migrates to a new host, it's like it can't remember what color it was just looking at a few seconds before, so it takes a lucky guess & doesn't always get it right...