[WindowsCentral.com]

It's harder than you think.

If you've jumped into Call of Duty: Black Ops 4 for PC and ever typed in the in-game chat, you may have been alarmed to find the game seemingly broadcasting your real name to others in the game. Understandably, some are irked at this feature and wish to turn it off.
The problem is that the setting for disabling this functionality exists in a couple of different places and may currently be bugged out, so even though you have the necessary options unchecked you'll find that your name might still be showing up to fellow gamers. We're here to show you how to hide your real name in Call of Duty: Black Ops 4 once and for all.

Full story from the WindowsCentral blog...