HRV (Hyper Reality Visor)
The HRV or Hyper Reality Visor is one of the most distinguishing features of Blacklight: Retribution. It allows you to perceive your environment with additional information. It displays your enemies and allies, their actions and much more in your field of vision, allowing you to see basically through walls. This however comes of course at a price, the HRV can only be used for a limited amount of time and it takes a recharge-time before being available again. The duration and recharge rate of the HRV are determined by the player's Helmet, as well as the Firewall Breach Kit, which boosts HRV duration and recharge rate.
Using your HRV also reveals the weak spot of a Hardsuit, available depots on the Map and highlights mines with an attention marker. Flying grenades, however, are not displayed. You can also view an enemy's health bar and currently equipped item by looking directly at them.