On Call of Duty: Black Ops 4, I contributed Systems Design to a new campaign-like mode (internally referred to as Career Mode).  My work encompassed character ability design, HUD and UX design, game mode design and more.  Unfortunately most of this work was cut when the mode itself was cut from the game.  However, I also contributed a lot of work towards vehicle design during my time on the project.  Specifically, I worked for months on the design and tuning of the ATV, which survived into the shipping battle royale mode, Blackout.