Below, we've got everything you need to know about how to get it, how to use it, and how powerful it is.
How to Get Sentry Gun Killstreak in Warzone
There's actually only one place you can find a Sentry Gun in Warzone and that's in loot rooms behind red doors.
Red Doors spawn randomly around Verdansk, so keep an ear out for them and go through them once you spot one.
Hopefully, you'll find a Sentry Gun in a loot chest in that room, just as you would an Advanced UAV or Precision Airstrike.
Gas Filled Red Door Rooms
As you might be able to see from the screenshot above, we entered a gas filled room in the only Red Door loot room we found a Sentry Gun in.
It took away my health pretty quickly, so get out as soon as you can. After about 30 seconds, the gas will have subsided, so you can then go back in to open the chests and grab the loot.
Hopefully you'll find a Sentry Gun in one of the Legendary Crates in the room.
How to Use Sentry Gun Killstreak
Then, you use the Sentry Gun like any other Killstreak in Warzone, pressing right on the d-pad if you're on console.
Then, you can place it wherever you'd like. However there are some things to note.
While you can pick up and move a Sentry Gun after placing it, you cannot put it back into your bag if you've placed it once. You cannot cancel it like you can Airstrikes, so have to place it somewhere once you've done so once.
Therefore, make sure you're placing it somewhere that's going to be useful in a fight. Don't take the Sentry Gun out if you don't really need it.
It's also worth noting that you cannot currently buy Sentry Gun's from Buy Stations in Warzone. If they're ever added to the shop, though, we'll be sure to let you know.