This exo suit is designed for navigating in extreme-pressure and zero-gravity environments. It requires two power cells to operate and is the best deep sea exploration vehicle in the game with a base crush depth of 900 meters, and a fully upgraded crush depth of 1,700 meters. The fragments you need to scan so you can build the P.R.A.W.N. Suit can be found on the Aurora.
Before you head towards the Aurora though you will need to prepare yourself for the exploration. This means a radioactive suit, scanner, knife, food, batteries, medical kits, and fire extinguisher. When you enter the Aurora via a hole in its side go to the second floor and follow the signs to the PRAWN Suit Bay where you will need to enter the code 1454 to open the Cargobay door (Cabin 1 code - 1869, Captain's Quarters code - 2679, and Underwater Lab Bay code - 6483). In the vehicle bay you will find 4 damaged PRAWN suits which each account for a quarter of the blueprint.
The materials you need to take back from the Aurora to craft the P.R.A.W.N. Suit are 2 Aluminium Oxide Crystal, 2 Lubricant, 2 Plasteel Ingot, and 2 Aerogel. Once you have everything required you will need to craft the P.R.A.W.N. Suit using a Mobile Vehicle Bay. The P.R.A.W.N. Suit can be customised using the Vehicle Upgrade Console. Upgrades are installed and swapped via the panel on the left shoulder. There are a total of six slots, four for upgrades and two for arm attachments.