Haven Troopers were outfitted with suits utilizing various technology that gave them superhuman prowess in combat.
Certain athletic female soldiers of Liquid Ocelot's private military were equipped with suits that enhanced their physical capabilities beyond that of a normal human, allowing them to cling to walls and leap several feet into the air. The vaguely green coloring of the suit, along with its distinctive abilities, is the reason the Haven Troopers were nicknamed "FROGS" or "Frog Soldiers".
The skintight grey jumpsuits was adorned with several pieces of leather-like strips on its shoulders and frontal torso. Multiple beige harnesses, straps, and holsters were also wrapped around each Haven Trooper. Their gloves and boots had a mechanism that allowed the wearer to adhere to and scale walls, which was speculated to employ van der Waals force. The boots also had small claws on the toes. All of this gear was peaked with a vaguely skull-like helmet with red glowing eyes.
Behind the scenes
Haven Troopers and their suits appear in Metal Gear Solid 4: Guns of the Patriots. The suit looks similar to that of Laughing Octopus in her Beast form, the major differences being its boots, coloring, and headgear. The outfit "Haven Trooper" could be equipped by female player characters in Metal Gear Online.
"Haven Trooper" is a wearable suit in Metal Gear Survive, and can only be unlocked by purchasing it with 5000 BP. It is exclusive to female avatars, and it overrides the Accessory/Head setting when worn. Otherwise, the functionality is the same as other suits.