I have Arma X anniversary edition pack. I have these questions:

Arma gold = Arma 1
Arma II = Arma 2
Arma :Cold war assault = OFP version 1.99
Operation Arma II Arrowhead = Newest arma version

Here is my question: Am I right in all of these?

Second question: Where to download ARMA/ARMA 2/ARMA: OA addons?