CBA - Community Based Addons which you can find here
is a very small addon which has small
fixes and improves your game in which should of been there from the begining, im not an expert
at it but you can find more about it in the link ive provided. I also suggest you do download it and
use it as it is a valuable asset for playing ArmA2/OA.
Also check out the Dev-Heaven page for alot more info detailing it here