Board Thread:Unanswered Questions/@comment-4584538-20150607111425/@comment-24990154-20150607124521

Yes, it's one of those "complete in one sortie" challenge. Moscow's a tricky place for that challenge, try avalon and pipeline instead. You could also damage the target with missiles first then kill it with gun, it's still counted especially if your mig-31's still at lv 1. It takes 2 missiles to kill a tank at lv. 1.