For this all you need is overkill

1. On your Xbox make a overkill class with any weapons e.g two shotguns
2. Go on Call of Duty Elite and edit that class so one of the two primary weapons is a riot shield and send changes
3. Go back on to Multiplayer and before it asks for the changes to be intergrated hover over riot shield for weapon you didn't change on elite
4. Click ok and when intergrated you can still select riot shield, so you will have two
5. Profit ???

Pro Tip
(Because elite sends my changes over quick, i do it on the 1st custom class, with two shotguns. On elite i change my 2nd primary to a riot shield so that when im trying to hover over riot shield i only have to click .... down, down, A, A, A, down)

The class needs to have overkill on, can't change it on elite for another perk!!!

This works for other weapons like if you wanted two MP7 etc.

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