[Saaril]

k... this is how it goes down. you have like in your 2e a base of 10 on the AC and then the next thing you do is add your dex bonus to your 10. as in 10=0 12=1 14=2 etc. Then you add your armor bonus. like a chain shirt has a bonus of 4. so my ranger with a dex of 18 has a base 14 ac then add his chain shirt and it gives you an 18 AC. There are a couple of feats that help out with ac as well.

Now that you have a char with 18 AC a goblin must meet that on his attack roll or he misses. If i am wrong anybody please clarify or correct.
That is all I have to say.