The popular streamer, who has just announced that his next Code Red tournament will not take place on Black Ops 4, but Apex Legends instead, thinks CoD might be playing a bit of catch up at this moment in time.
However, he does expect some exciting news from the developer ahead of the next installment, in order to maintain the franchise's popularity.
Despite Call of Duty breaking the digital unit sale record in November of last year, after selling over 4.2 million online copies of Black Ops 4, The Doc predicts that the game will be innovated further in the near future.
"I wouldn't be surprised if we see some major changes to the next Call of Duty, or even the Call of Duty after that. They have to change. They have to change the formula," he said during a stream on February 13.
"This new generation of kids that are exposed to Fortnite and are being exposed right now toApex Legends, they're really young kids you know. They didn't grow up with Call of Duty like we did," he explained.
The new battle royale games are surging in popularity by combining new special abilities, mechanics and old-school first-person shooter gameplay, and he says Call of Duty have got to get ahead of the game.
Treyarch introduced the franchise's first BR game mode last year with Blackout, which can be played in Black Ops 4, but next year's game is being developed by Infinity Ward- as many fans will have expected.
Whether or not the next CoD title will feature the "major changes" that The Doc is expecting remains to be seen, but the increased levels of competition that he mentions - within the battle royale area of gaming - is there for all to see.