That intel operative is a bit too time conscious. First he keeps us waiting and then says we took so long.
Jamais Vu wasn't that hard right after you get the hang of it? People aren't a fan of it for some reason lol.
That's literally the same experience I had with Anti Air emplacements. The guards were a bit too erratic and kept ruining the S-rank when you go from the other opening, through the cage fence.
The enemy movement was pretty erratic in Anti Air. The real lightbulb moment for me was realizing there's more than one way to destroy an Anti-Air gun! I'm so used to having very specific parameters set in how to tackle objectives like this that it took me a while to just start experimenting out of frustration. It's amazing how many ways there are to tackle just one objective in one facility.
Just another reason I'm very excited for MGSV!