From Halopedia, the Halo wiki
The helmet has a linear target focused visor architecture. It also has long-range impact layers for collecting vibrations and sound over great distances. The suit has a sub-collar plate contacts for stealth modifications, and anterior flex-locked hard points for equipment.
The Wetwork variant was manufactured by Lethbridge Industrial and tested at Lethbridge Combat Fields. The armor was tested against the United Rebel Front on Talitsa. It was designed to enhance the stealth capabilities of its user, and is intended primarily for covert elimination of targets.
Although not often encountered in the field, WETWORK-class armor is generally employed in high-value target acquisition and elimination scenarios. Its most notable use was during a classified mission to target key rebel leaders on the surface of Talitsa by Delta Six operatives.
Available skins: Shard (SHRD)
Halo 5: Guardians
Available skins: Cleaner
In Halo 5: Guardians due to the "Body" having a predefined customisation this armor set permanently has the following parts from Halo 4:
Halo 4 skins
Halo 5: Guardians skins
Halo 5: Guardians REQ cards
List of appearances