Gunpowder mastery achievement

Just wanted to let the developers know that this achievement is currently impossible with the current state of the game:
The achievement asks you to destroy 50 siege units using ozutsu
but ozutsus do nearly 1 damage per shot against siege units
so destroying one siege unit takes like 100 shots
so how about destroying 50?
please devs change this achievement or delete it

Hi, play against a friend, and let him spam ribauldequins, they have no range armor without upgrade, obviously he should let them die and not deploy them in attack position

I see, sounds a good idea
Thanks for the tip