The ausinf.pbo file you have requested: Addons / Units / Australian Infantry/SAS - 5.06mb is not available. Perhaps try browsing all files for the game Operation Flashpoint and upload any files you want to share or are missing. This is the only information we could locate:
This addon includes both regular and SAS versions of the Australian Infantry forces. Units are included representing all of the ranks and this is reflected on the skins with the inclusion of rank markings. The regular infantry are equipped with the Steyr while the SAS carry the M16/M203.The skins are accurately modelled on real world Australian Infantry camouflage, and look fairly authentic as you'll see from the screenshots. These are the only things that have been changed other than a few modifications that have been made to the config files, according to the author. The rank slides consist of black chevrons painted on and as far as I can tell this is what is used by the real Australian Infantry.There isn't really much more to say. Obviously these infantry would be ideal for any Australian Infantry related missions, but they are nothing exceptional so don't bother downloading them unless you have a specific need for them.