Sneaking up on enemies with the Silenced Sub-Machine Gun can do wonderful things especially if you’re capable of landing critical hits with any reliability. Other than that you’re basically focusing on making sure you character excels at using his small gun to destroy enemies. Night Person will help you with this as well by making it easier for you to detect enemies and shoot them from a good distance or sneak past them.
Friend of the Night makes it easier for you to see during the nighttime hours which are when you should be actively moving around the Wasteland or dungeons. Taking a look at this build you can clearly see one of the primary purposes of the perks: making you an absolute beast at night.
