Mission 5: Kunlun Mountain
Tag 13: As soon as you meet up with Irish and a few other inmates, go to the right of the yellow stripes on the floor and there will be some mesh walls on the far side. To the right side, near the lockers and through the screen wall will be the collectible. It can take some fidgeting to find and the flashlight helps greatly.
Tag 14: When you take the elevator up with Dima and Irish, go left out of the first room and enter the larger area. Take the first ladder on the left side by the pillar labeled B-3 and follow the catwalk to the electrical panel a few steps forward where the dog tag will be hanging.
Tag 15: When you finally reach the tram atop the snowy hill, look under the ramp that you need to go up and the dog tag will be in the side of the cliff, just over the edge.
Mission 6: Tashgar
Tag 16: This is one of the more tricky dog tags to find. Once you pass through the park and the short underground entrance, you will come out to another large area where there is a battle raging. In front of the large building directly across from where you enter, there will be a blue truck. You will need to destroy the truck and then grab the dog tag from inside it.
Tag 17: Just after you reach the dam and take out the helicopter that is buzzing around, you will be told to find a way into the next area. Walk along the upper catwalk and drop down and then go up the first set of stairs you come to. Hop across to the platform shown above and the dog tag will be on the wall there.
Mission 7: Suez
Tag 18: Near the start of the mission when you are fighting your way across the ship’s deck, you will come to a large Osprey plane along the left side that is not damaged and has its back door open. Go to the right side of it, and climb up the knocked down scaffolding to reach the horizontal propeller. Hop across to it and then make your way to the rear of the plane and on the left side tail will be the collectible.
Tag 19: When you reach the med bay where Jin Jie is sitting on the bed, go into the small area across from him on the right where another bed is and the tag will be sitting on it.