Gathering Intel Missions

I think I am really starting to hate these missions where you have to gather 3 pieces of intel then deliver them at base. The hit box for these 3 intels are extremely small and it is fine if they are in a single room. However, I got a mission where you have to gather them in the Cave in the Quarry. I swear I've circled the whole cave 10x and only able to find 2 intels.