Go to this video:
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-and comment "Nice video, GT: YOUR GAMERTAG" and I will invite you. Simple as that.

What you get in the lobby:

- Desired Prestige + 70

- All Titles Unlocked

- All Emblems Unlocked

- All Challenges Unlocked

- All Camos Unlocked

- All Guns Unlocked

- All Gun Attachments Unlocked

- All Accolades Unlocked

- Spinning Tenth Skull Unlocked

- And much more!