I sometimes also manage to find "Debris field", "Convoy Beacon" & "Patrol Point".Hold on - SAP8 containers are still IN the game?! I've never found one myself; thought they were just removed years ago as another dropped mystery in the game that never developed further.
The old stuff is still there, buried under it all and is not easy to find.
(i can't promise you that all of it is still there of course)