AC works differently in our game. Don't base it off ROK.
In terms of AC where we aim it to be:
100 AC Heavy
70 AC Medium
40 AC Light
30 AC Cloth
Values are around that. Light/Cloth normally have spells or skills that increase AC to about 70-85. AC doesn't effect dodge, only chance to absorb and passive absorb. Medium will stay around 70AC as most medium classes are the heavy hitters. Ninjas will probably have around 70AC as well at level 25. 100AC isn't the average base for ALL anymore.
We don't have alot of OAD armors in yet, or weapons. Your damage and AC is a good deal lower then it will be too.
Thanks.