I'm not totally sure about this but last I remember crits hit no matter what the AC or dodge stats were on the player/monster you were hitting?
I don't even know if this is still true, but that needs to be fixed. First you should have to actually land the blow before it becomes a critical hit.
Like I said I forget how this works these days and I'm sure someone else addressed this but just throwing it out there.
I am 98.765% sure that this was changed in MajorMUD as part of the big combat change that made AC so godly. You now have to land a hit before a crit roll is calculated. I certainly expect that GreaterMUD works the same way.
This was changed in 1.1w?ISH..
It was quite a bit later; it was a Metro change, 1.1w was still WCC. I firmly believe it was part of the major combat change.
Maybe could always check release notes.