Unlock the following nameplates by performing the corresponding tasks. To activate it, log into Bungie.net, select "Account" > "Game Settings" > "Nameplates".
NAMEPLATE - HOW TO UNLOCK Assault rifle - Play the Halo Reach Beta in May 2010. Halo 2 logo - Play Halo 2 on Xbox Live before April 15, 2010. Halo 3 logo - Play any Campaign level in Halo 3 on Xbox Live. Marathon Durandal symbol - Have Marathon Durandal in your recently played games list and login at Bungie.net. MJOLNIR Mk VI helmet logo - Unlock any four of the Halo PC, Halo 2, Halo 3, Halo 3 - ODST or Halo Reach Beta nameplates. ODST logo - Play Halo 3:ODST on Xbox Live. Original Halo logo - Register your Halo PC product code at Bungie.net. The Septagon symbol - Join Bungie.net and login with your Gamertag's email address.