This trophy requires you to loot 5 Exceptional weapons, which are colored orange. Normally, they are completely random, but there is a way to make it so you always get one. This works for any character, but it's helpful to have beaten the game, so you can have access to all of the areas (start at Chapter 15). This method also requires leaving your system on for 5 hours at a time, so if you do this, only do it once to make sure to give your system a rest afterwards. First, fast travel to River Village and loot some of the chests there, then go back to the boat and sell those items. Now, make sure you're somewhere safe and leave your system on for 5 hours (might be a good idea to make note of when you start, so you can keep track of the time). Once 5 hours has passed, fast travel to Bunker #2 and there should be a chest right by where you spawn; open it and you should get an orange weapon. Repeat this as many times as needed to get the trophy.