"Killing an enemy refills a portion of your health."
— In-game description
Invigorate is an Epicgun perk in Call of Duty: Infinite Warfare. It is exclusive to the FHR-40's Epic Windfall variant. Each kill gains the player a little bit of their health back when they are damaged. In Zombies Mode, players gain a little bit of their health back every two kills. It also has a custom sight that highlights targets, similar to the Titan - Scout and DMR-1 - Spectacle's custom sights, Hax and Reflex, respectively.