I have been trying to do the demolition derby achievement for over a year.
I have run over 120 Isle of conquest battlegrounds, out of those the siege engine spawned four times, out of those times the battleground ended before the siege was killed.
The two times I managed to kill it, I did not get credit for the kill, because the achievement is bugged on classic and you need to do the killing blow to get credit, which is both wrong, and ridiculous
I want my achievement, I earned it! give me!