The harrier is kind of useless now since everybody has unlocked a stinger or a javelin. Occasionally, you'll run into a match with a team that was dumb enough not to carry any anti-aircraft whatsoever, but that's an anomaly.
Good games, guys (Cajole, Zero Hero, Kestastrophe, etc.). I had been playing for almost 90 minutes beforehand with Cajole, though, and desperately required a break.