This guide will let you know where to find Crash Site & Waterway Dead Drop in the COD (Call Of Duty) DMZ Break Check mission.
First, you will need to get the item from the crash site. Just make your way to the following location on the map, and there will be a burnout car on the side of the observatory. Pick the fro underneath the car.
After that, go to Ashika Island, and there will be three entrances to the waterway. You need to use the following entrance as it’s the closest to the Dead Drop.
Once you get there, follow the path through and about halfway up the tunnel on the right-hand side. You will find the Dead Drop right next to the guy.