Blind Eye

Blind Eye is a tier 1 perk which appears in Call of Duty: Modern Warfare 3.

The perk allows the player to be undetectable by air support and sentries. Its pro version makes the player's launchers lock-on quicker, and get extra bullet damage versus air support and sentries.

Contrary to popular belief, Blind Eye does not make the player invisible to UAV.

For the pro version of this perk, you will need to destroy 40 enemy killstreaks, be it a UAV Recon sam turret air support or a sentry gun.