Okay so basically this is a new step where you can unlock any title and/or emblem, place them on your callsign and they will stick..

Sign out of controller 1
Sign in on controller 2 and connect to Xbox live
Back out into the multiplayer menu and click on system link with controller 1
At the same time while the notice is up (for signing in) , click A on both controllers at the same time
A sign in pop up should come up. And the Xbox live lobby in the background
Then with controller one, sign in
Then it should take you to system link and sign in.
Enable competition mode, create game, start it and it should crash
Then it'll take u to the Xbox live lobby
Go to the title/emblem you want,
Find a friend or recent player that you can join game session while they are in a match,
Join their game and back out, there ya go! You get a title stuck to your callsign without unlocking it

Idk if this is already found or not but oh well...Please to complain to me.