- LordOfBlah51
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- Exalted Mythic Member
I'm assuming you mean how do you unlock nameplates for your lobby name? That is under Halo settings on your profile. Go to Profile > Halo Game Settings.
You can get XP without LIVE by doing Campaign, Forge, Custom Games, and Firefight. If you ever get LIVE you will be demoted to Warrant Officer, though.