this only works if u want the 15th title
emblems camos,prestiging in combat and such

ok....

go to combat training.
click the xbox guide button
Start a party
Click Playercard
Click B
Click Y
Go to your party
Click on yourself and bam ur free to go

EDIT::
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Go to Combat Training
Then you Press the xbox guide button
then you start a party
Go Back to Combat Training
Click on playercard
Press B
then Press Y
go to your Party and Click on yourself

and your Done