Mason, Woods and Hudson return on the hunt for a mysterious figure named Perseus.
Host Geoff Keighley confirms a "world premiere new look" for this Thursday.
The shooter's PC version will be handled by Beenox.
It could indicate two playable sides in the conflict.
Activision will reveal the game in full via Call of Duty: Warzone next week.
Further teases point to something happening on August 14th.
The gas could be a reference to Nova6.
Know your history.
A reveal for the next Call of Duty could be coming next week.
"Warzone has caused us to rethink how, when, and even where we reveal our upcoming titles," says Activision's Robert Kostich.
Integration with Warzone is also confirmed.
New promotional material doubles down on the Black Ops - Cold War rumours.
The upcoming Call of Duty instalment might have an impressive collection of modes.
The alleged codename for the next Call of Duty was spotted on PSN last month.
Some pre-Alpha footage of the next game is apparently out there.
Insider Okami teases the possible title for this year's Call of Duty.
But things could always change.
The COVID-19 pandemic will require reassessing this "in a month and in three months".
Details on multiplayer, Zombies, and more have also emerged.
It's followed by Call of Duty: Black Ops and Minecraft.