Due to the missing night vision feature in Conviction, I was designated for performing a workaround. This addon gives you the possibility of enabling night vision no matter if sonar scan is acitvated, its additional. I don't know why Ubisoft didn't implemented this?! You can choose between different nightvision grades/colors. Right now there are 6 different color grades/nuances included. Google the name of the mod to get images of each mode.