Whenever I play a mission at any time of night, whenever even the slightest thing to do with light causes my game to go crazy.
Ambient light causes the game to turn a blue shade instead of green shade when in NV mode. This only happens when I look in certain directions, of which seem to be random.
Muzzle flashes, even silenced ones, cause nearby vegetation do appear all over my screen in a solid green colour, and move around my screen when I look around, and rapidly appear and disappear whenever a shot is fired.