Alan Wake 2

To upgrade your weapons you will need manuscript fragments. These are found when you locate "Alex Casey Lunchboxes". You will come across these if you are searching everywhere and everything! To upgrade your weapon enter the mind map by pressing the back button. Look to the right of the radio and you will see weapon upgrade. Upgrade all 3 pieces of any weapon and the achievement will unlock!

I will attach a list here of all Alex Casey Lunchboxes below!

https://gamerant.com/alan-wake-2-lunch-box-locations-where-a...