Different mission entirely. The A-10 is all attack, not much for recce. A slow FAC is just the opposite. The FAC mission is to find 'em, mark 'em, and bring in the heavy hitters to kill 'em. The addition of some weapons for "instant response" is something we 'Nam FACs always wished we had (and OV-10 guys did have to a small degree). There are times when even a small hit solves a lot of problems, especially with close support of grunts.
