WotLK Achievment question - AV All-Star bug?

[liverrrrrrrrr]

Hey!

Can some explain me how is this even possible?

[Thorbjorn]

It tracks incorrectly. You did all those objectives but at different BGs. Once you do them in a single BG it'll complete. I had the same issue with that achievement.

[liverrrrrrrrr]

Thanks. , makes sense!