I'm happy to look into it but I'm curious as to how you could possibly know that they had identical setups if one of the bodies disappeared?
I watched #1 for about 5 minutes before shooting because I knew he had a teammate, we heard the gun firing too rapidly to only be one. Then #2 (the body pictured) ran right in front of me, I shot him, and turned and shot his friend. I looted #2 first and waited about 2 minutes to go looking for #1 and it was nowhere to be found.
EDIT: I can tell you they both had Tree Ghillie, Plate Carrier, Czech Backpack and M107. #1 had a Schmidt and #2 was using a MkIV. Also #2 only had a Makarov as a secondary and some random fresh spawn stuff (Enfield and shotgun mags) on him as well, which adds to the suspicion.