One of my TR character tested crossbow and 2x or 3.4 x scope and after that all is black. Only I can see is consoles. After I manage change equipment and class and exit game and enter again then all is normal again. Changing gear is essential. No other characters are affected so my7 conclusion is it is crossbow and/or scope in it. Nothing else changed.
I have something similar happening to me this is my post does it sound similar? https://forums.station.sony.com/ps2/index.php?threads/cannot-see-while-infantry.177726/