Kill 5 enemies with a single airstrike
I have had reapers, AC130s and helicopters kill more than 5 enemies during a single killstreak usage but I don’t have that emblem yet. Therefore I think single airstrike would refer to *
a single predator missile, a single precision airstrike or a single stealth bombing run must kill 5 enemies in rapid or near simultaneous succession to earn this emblem.
* UPDATED: I recently killed the entire enemy team of 6 players with a single predator missile and I was not awarded this emblem