The Black Tide is a Weapon Blueprint available in Call of Duty: Black Ops Cold War and Call of Duty: Warzone.
It is an Epic blueprint variant of the base weapon XM4, one of the Assault Rifles featured in Call of Duty.
The Black Tide blueprint was released at Game Launch as part of the Bundle Ultimate Edition: Sea Pack included in the Ultimate Edition of Call of Duty: Black Ops Cold War.
Black Tide - XM4 - Blueprint Attachments:
Here are the attachments for the Black Tide Blueprint featured in Call of Duty: Black Ops Cold War and Call of Duty: Warzone.
You can build your own Black Tide weapon Blueprint by adding these attachments on a base XM4 in the Gunsmith menu.