In Gears of War: Judgement for the Xbox 360, Young Dom is available as a DLC character that you can use in Multiplayer matches.
There is a catch though, since Young Dom was only available as a pr-order bonus from Amazon.
If you still want to get Young Dom however you’re in luck, because people sell their DLC codes on Ebay. This will probably be the only way to get Young Dom as well, unless they release him as a purchasable DLC character in the future.
Check out my other guide if you’re looking for the full list of unlockable multiplayer characters, including exclusive DLC characters, or a complete list of cheats, unlockables, tips, guides, and more.