Found one, was only able to do so when I had one good fireteam (One game out of all that made me level 62) where no one would shoot but use the knife and silencer against AI. The Predator couldn't find us and we carefully searched each area, was a good game and I found an OWLF recording. Did not bother opening it yet.
I suppose the best is to be able to launch a private match alone and go for the search of the OWLF recording alone.
Once you reach a certain level (Berzerker+combistick), the game becomes absolute nightmare and you don't stand a chance if your team don't understand teamwork and that the Predator should always be the priority, not the objectives.