Wondering how to play and access Dead Ops Arcade in Call of Duty Black Ops Cold War? This is how you do it:
Title Screen > Zombies > Die Maschine Endless > Dead Ops Arcade (Public or Private)
You can pick the public Dead Ops Arcade to use matchmaking (other players will automatically be found and join your match). Or if you want to play solo, you can pick the private option and select Dead Ops Arcade Solo. Dead Ops Arcade is a Top-Down view 2D Shooter that was already in previous COD games. It has made a return in COD BO Cold War.