kek
Literally woke back up for this. Just in time. Merry Christmas, Q.
There are four variations of the Fox brevity word, with a number added to the end of Fox to describe the primary type of sensors the launched munition possesses (if applicable). In addition, a separate brevity word for gunfire exists and is grouped with the four Fox codes for convenience.
Fox one
Indicates launch of a semi-active radar-guided missile (such as the AIM-7 Sparrow).[1]
Fox two
Indicates launch of an infrared-guided missile (such as the AIM-9 Sidewinder).[1]
>Fox three
Indicates launch of an active radar-guided missile (such as the AIM-120 AMRAAM and AIM-54 Phoenix).[1]
Fox four
Historical term indicating air-to-air or air-to-surface cannon fire. The term in current usage is Guns, Guns, Guns.[2]