In your game menu under Intel and then Field Data, you can find the collectibles of the game. These will give you some background info on what happened in New York. There is no influence on the game for collecting all.
You can find the locations of all these on the interactive map.
Each collectible page is split by Districts for easy reference.
- 24 pages of the survival guide.
- 130 discarded phones with messages from people during the outbreak.
- 40 reports over the state of the city.
- 16 drone flight recorder, showing data from before they crashed.
- 20 agents of the first wave that have gone missing.
- 63 scenes that got captured by surveillance and is re-rendered using a dot cloud in your virtual augmentation equipment. It's like a snapshot frozen in time that you can examine a bit closer.