Before you do it you will need:
1. You need to be at least 14th prestige in combat training.
2. You will need to have 50k credits in Combat Training & in Multiplayer.

Step by step tutorial:
1. Have a friend invite you to Combat training
2. Go to class 1.
2. Go to camos for the weapon you want to be gold.
3. Select the Gold camo, It should ask if you want to buy and equip.
4. While its still asking you to buy and equip tell your friend to switch lobbies to player match.
5. After you switch buy and equip.

The gold gun should be in class 1.

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Combat Training 50k Per Kill Lobby Tutorial:
1.Download a custom game from the GT: ZaKaRooGB to your File share.
2.Load the custom game.
3.Click on "Edit Options" and just save back to your File Share.
4.Switch the lobby to Combat Training.
5.Go to switch lobbies and hover over Private Match. *Do Not click on private match*
6.Press B and go into your File Share and load the custom game.
7.Right after you click the load button rapidly press "A"
8.If done correctly you should be in the Combat Training lobby.
9.Double check to make sure you did it right by clicking on "Change Game Mode"
10.Edit your game options and map.
11.Enjoy!

Thank the Topic and +Rep!
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