P.E.S.

The P.E.S. (Pressurized External Suit) is a piece of equipment on the zombies map Moon. It gives players the ability to survive in majority of places on the Moon. As shown in a gameplay video, the helmet is shown in the equipment slot and is therefore removable. The P.E.S. is free right after teleporting to the Moon. It is right in front of the player. The suit is free to take, meaning it can easily be transferred between itself and the Hacker or Claymores. It is also available in lots of doorways throughout the map, especially those which lead into and area where the player needs the P.E.S.

Trivia

 * When putting the suit on in first person, it looks exactly the same as the Gas Mask that Hudson puts on in Rebirth, despite the suit looking different in third person.