I found a PU Scope for the Mosin in a hanger at NWAF, badly damaged. a few minutes later I found another one, worn, so swapped them. carried on looting with my buddy. While scoped in covering the cammo admin building approx. 15 minutes later the scope just popped out of existence and never came back :(

Video footage here - http://youtu.be/vQxnxesRfPo
Pickup damaged Scope at 42 secs
Pickup worn scope and replace at 2:50
Scope disappears at 18:05