fades in
further details: It happens when you fire the left pistol. Also the left pistol doesn't show a muzzle flare, which seems related.
Also in my experience it doesn't happen or it's imperceptible if the "load" of the situation is low. Like if I'm alone on a simpler map, or something, then it doesn't happen, but once I get near a few other players then it happens or becomes noticeable.
i personally don't think the camera is teleporting outside the map, I think something is super glitching out and all the objects around you are failing to display, or something. I'm pretty sure the game freezes for a moment. I'm pretty sure if I keep firing for a while in a high "load" situation the glitches "build up" (the freezes get more intense).
fades back out