Stealth

As the name suggests, this armor is all about stealth, making it the best choice for silent operations. (And lots of Sneaky Breaching!)

Cobalt:

This set is composed of Stealth Head, Stealth Torso, Stealth Hands, and Stealth Feet.

This armor is also the only one to have some unique effects.

These statistics can be seen in the Story Mode's Lobby in the armory. (aka The Seed.)

These stats include 'Noise Reduction,' and 'Cloaking Power.'

Compensating for this however, makes this armor the weakest at protecting itself, with it lowering the normal damage defense stat to lower than an explorer set.

Same applies to the gamma, heat, and cold defense stats.

Noise Reduction applies to actions like opening doors, jumping noise, punching noise, and walking noise. Ai can detect these actions, and Stealth armor will make it nearly impossible for the enemy to detect you.

Cloaking Power turns your metalface nearly invisible over time, by either sneaking, being in idle state, or by not performing actions over time. (Sticking to a wall via Sloth Grip, or being on a rideable ally.)

This makes enemies not notice you, as long as you are in the 'Partially Cloaked' state.

You lose your cloak if you attack with an un-suppressed weapon, walk without sneaking, touch an enemy, get hit, or unequip your last Stealth piece.

If you have not found or bought any pieces of the Stealth Hull throughout the chapters of story mode, you may find one or more in Chapter 7, in the section, 'Making a Choice.'

WASD:

The Stealth class in WASD costs 25 volts for both teams, share the same ability, and have 100 HP.

The ability is called Cloaking Aura, and can be spread to teammates in a range of 9.4 meters from the player that activated it.

This, unlike normal cloaking power in cobalt, does not get deactivated from making un-stealthy actions, rather it has a limited time of near permanent invisibility.

Against bots in practice, attacking and missing once while in cloaking mode will trigger the AI to precisely know your location as long as you are in their vicinity.

(This is best paired with a strong melee weapons, such as the Scimitar.)