This may be well dated information but having worked with the USAF Fighter Weapons School A-10 Branch back in 1986 at Ft. Hood, TX, Ft. Sill, OK, and at Nellis AFB, NV,
My Air Cav unit was the first unit to fielding the then brand new AH-64A Apache attack helicopter. While working with the A-10 pilots, we were told that they could use the
seeker heads (depending on which version was fitted to the aircraft) of the Maverick missiles for use not only in targeting but to also use as a poor mans vision system day or night, so they may have had one of each of the current versions loaded