Level 1 (2 loadout points)- Marking a foe lasts 3 seconds longer. Aim at an enemy and click R3 to mark.
Level 2 (3 loadout points)- Marks last 3 seconds longer and marked enemies glow. Aim at an enemy and click R3 to mark.
Level 3 (4 loadout points)- Marks last 3 seconds longer, marked enemies glow, and enemies within a short distance of your target are also marked. Aim at an enemy and click R3 to mark.
Marking enemies alerts teammates to their positions; level 1 Hawk-eyed allows both the player and teammates to know where the enemies are for a longer period of time.
Level 2 Hawk-eyed highlights marked enemies in bright red (similarly to how friendly players are highlighted in bright blue or yellow). The highlighted silhouettes are still visible through walls; this is useful because it can indicate to attentive players whether enemies are lying in wait or distracted through healing or crafting.
Hawk-eyed synergizes with Damage Marker.