both elite and non-elite obuch (poles unique unit) doesn't decrease enemy armor when it attacks

Doesn't say that it does in the description.

[AdiX]SteLitY test with this patch please:
help us to test obuch on beta patch please:
https://www.voobly.com/gamemods/mod/1667/v16-RC-Beta

I just tested it a bit. Thanks for putting in the effort and great you found a way to implement the damaged armour. In principle it seems to work.
However, when I tested Elite War Elephant vs Elite Obuch I found that the first hit will give 10 damage and the second (and remaining) hits 11 damage. Since the Elite Obuch attack is 10 and the (undamaged) elephant armour 1 imho the first hit should give 9 damage and the next ones 10, no?
Elite Obuch vs. Elite Teutonic Knight seemed also wrong to me. Since it has 10 armour the first hit should be imho just 1 damage, but I think it was 6? But I might be wrong, since the attack bonus vs. high armoured units might also still be active. Dunno if that is how it's supposed to be.
Also the tech tree description is not updated yet.

Indeed, the damage values are wrong because we haven't yet disabled the old bonus so they are both applied. Once we are sure this new implementation works, we'll release an update of the data mod.