I found a way to display the Online Player Count (For a few seconds at least) : r/blackops3
Amazon.com: PlayStation 4 500GB Console - Call of Duty Black Ops III Bundle [Discontinued] : Video Games
Does Black Ops 3 still have a high player count on PS4? - Quora
Black ops 3 is still proving its worth in 2021 by passing bo4 in most active games, now lets sit back and watch as it passes cold war as well :) : r/blackops3
Call of Duty®: Black Ops III - Zombies Chronicles Edition
Call of Duty: Black Ops III Lag and In-game Performance
Call of Duty: Black Ops III Game Review | Common Sense Media
Call of Duty: Black Ops 3 - NO CAMPAIGN!? - YouTube
Call of Duty: Black Ops 3 is a world at war with itself | Eurogamer.net
Call of Duty: Black Ops III (PS4) - The Game Hoard
Amazon.com: Call of Duty: Black Ops III (PS4) : Video Games
Does Black Ops 3 still have a high player count on PS4? - Quora
Performance Analysis: Call of Duty: Black Ops 3 | Eurogamer.net