Attacking Darssan

[Ancientz]

Hey

I used my 60 unit strong orc army to attack the Humans in Darssan for a quest, i got through the first two gates with the ram fine, when it got to the last stone gate the ram didnt want to play and i couldnt break down the walls, also the ladders and towers couldnt lock onto their walls so i ended up quitting is this just a glitch?

Thanks