Do note that the currently available targets for Vega are either mach 3 SR-71's booming above FL600, or target drones at a firing range. None of them do any specific maneuver against incoming missiles, unlike those F-4s above Hanoi. As far as I can tell from my Falcon 4.0 experience, those maneuvers can make a big difference on miss distance.
Another good reason to wait for those Libya scenarios!