Enters the Stealth mode, during which the user is hard to be seen by enemies beyond 12m and cannot be detected by enemies. Meanwhile, gains a 20% speed boost and 25 temporary Shield Points. Lasts up to 13s. While stealthed, the user cannot fire. Exiting Stealth has a 0.5s delay. Aim assist will be triggered if there are enemies within 12m. Cooldown: 45s.