If you thought about Infinite Warfare, you are wrong. Black Ops 3 is the one that got updated.
It’s not a good year for the Call of Duty brand. Infinite Warfare’s sales were almost -50% down in November and it appears that the annual release schedule finally resulted in a hiccup. Black Ops 3’s player base appears to be steady as the game received a major functionality.
https://www.youtube.com/watch?v=58Pspqx0XGs
Dedicated servers tools are part of game’s Update 18. “Unranked Dedicated Servers and Remote Console tool for running your own dedicated servers with your favorite custom maps and mods,” we read about the main feature in the official patch notes
The update contains a few bug fixes for multiplayer and zombie modes as well. You will find full instructions on how to start your own dedicated server on Steam Community.