Protective Coating Weapon Upgrades

On the top floor of the school. To reach it, climb through a classroom window in the lower-middle part of the building, climb a ladder to get onto the roof, then use another ladder to go down a floor. Creep around the edge of a hole, shoot the wooden boards, and you’ll find the blueprint in a safe near the back wall. Works with the Cuirass Exoskeleton.

Inside a duffel bag in a room at the end of a toxic gas-filled corridor. Works with Liberty Exoskeleton.

Inside a backpack hidden beneath the metal railings on top of the concrete platform. Works with the Shield of Duty Exosuit.

Inside a safe in the back room. Every door leading to it is boobytrapped, so watch out for tripwires! Works with the Liberty Exoskeleton.

Inside a duffel bag on a shelf at the end of the warehouse. To reach it, smash the boxes on the shelves in the main room, and you’ll get a clear shot on the plank blocking the door. Works with SEVA-V Suit.

Inside a safe next to an overturned train deep inside the military tunnel. Works with the Exoskeleton.