A few days ago a Russian player MACCA_B_TAHKE amazed the world (of Tanks) by archieving 15 kills with a FV215b (183), which only has 12 shells.

Here's his RU page profile (courtesy of Trollin' Along)

Now it turns out the suspicion was correct: the guy is being investigated and the thread that celebrated the game on the RU forums has been shut down. Apparently, the battle was staged - no big surprise there.