Blind Eye= Scorestreaks controlled by Artificial Intelligence cannot target you.
Ghost= Immune to UAV while moving, planting or defusing a bomb, and controlling scorestreaks.
Cold-Blooded= Immune to Target Finder, Sensor Grenade, MMS, other attachments that can see you, and you don't show up as a big fat red diamond for player controlled killstreaks such as Hellfire, VTOL Warship, etc. --- Hope is what makes us strong. It is what we fight with when all else is lost.