"Audio cues provide advance warning of fast moving or aerial hostiles. Getting lower to the ground will increase the range of detection."
— In-game description.
Heightened Senses is a trait for Phantom in Call of Duty: Infinite Warfare. When sprinting or boost jumping enemies are near the player, a red glow will pulse in the user's HUD and their controller will vibrate. While crouched or prone, they will pulse faster while in their respective stances. This trait acts as a much better audio and visual cue of the Sitrep/Awareness Perk from most previous titles.