[quote=@Harbringer]
Id say you do but ill let viet decide that.
[/quote]

Indeed, it is up to Viet. But if we denote "kills" in the same way as modern pilots, then it does imply enemy craft downed like Reaper said. In fact, it's considered dishonorable and in bad form to kill an enemy pilot if you can help it, especially after they eject.