Spotter/Fallout: New Vegas

Spotter is a companion perk in Fallout: New Vegas.

Effects
When Craig Boone is in your party, all hostile enemies are highlighted in red while you are "actively aiming". This means using iron-sights, a scope, or night-vision scope. Enemies will glow green instead of red when using a night-vision scope. This makes enemies easier to spot and attack, especially at long distances or at night. This perk does not highlight cloaked nightkin.