Yes, you can play a Bo3 game on an Xbox 360 with an Xbox One. The two systems are backwards compatible, meaning they can play older games.
Yes, Black Ops 3 is backwards compatible on Xbox One.
Yes, Xbox 360 Black Ops does work on Xbox One. You just need to download the game onto your Xbox One console and it will be playable.
Yes, Black Ops 3 is cross compatible. It can be played on PlayStation 4, Xbox One, and PC.
Call of Duty: Modern Warfare is the only CoD game that is currently cross-platform.
Yes, Black Ops 4 is crossplay enabled on all platforms.
There are a few ways to play Xbox 360 games on your Xbox One. The first is to simply insert the disc into your Xbox One and the game will start up. If you have downloaded the game to your Xbox 360, you can also transfer the game to your Xbox One by signing into Xbox Live on your Xbox 360 and then selecting “My Games & Apps.” Find the game you want to transfer and press the Menu button on your controller.
As of now, Call of Duty: Modern Warfare, Call of Duty 4: Modern Warfare, and Call of Duty: World at War are backwards compatible with Xbox One.
Yes, 2 players can play Black Ops 3 on Xbox 360.
Yes, Xbox 360 discs work with Xbox One. However, you need to have an Xbox 360 disc drive in your Xbox One in order to play them.