Go on to private match. Then put it to free for all. Put unlimited time and and score limit to 30000.
Put class editor to custom classes then click on custom classes.

Then go to custom 1. Change the title to gold in capitals. Then go to edit class loadout. Go to your primary weapon and change it to an AK-47 with flamethrower and put the camo as gold.

Then go to secondary weapon change it to a crossbow. Make sure you have a SEMTEX and leave your perks the way they are.

Change the map to Nuketown and then start the game.

Go over to the white and red truck get you cross bow out and aim at the truck. Let go of the aiming button and press the left button on your dpad and aim at the same spot.

Then look to the ground and a semtex quickly.

Then quickly change your class before the semtex blows up and thats it.