Go to your ArmA 1 directory and find the following files and move them to a modfolder in your ArmA 2 Directory:

Modfolder:
@ArmA1\addons

buildings.pbo/plants.pbo/roads.pbo/rocks.pbo/misc.pbo

Rename all by putting CA infront, eg: CArocks.pbo

Create a shortcut for Arma 2, add the line -mod=@ArmA1

* Install Yoma Addon Sync.
* Add the CAA1 Yoma Addon Sync Server:
Auto config URL:

Code:

http://caa1.arma-creations.com/yas/caa1/caa1.7z

or by adding the server via the caa1.yas file.
* Download all files.
* Load the modfolder via -mod=x\caa1;x\oac\oac_core;