The bas_dera_v1_55.rar file you have requested: Addons / Units / Delta/Ranger Unit Addon - 15.22mb 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 is an update of an older mod created by Balistic Addon Studios (BAS). The addon was very popular when it came out, the file was downloaded a few thousand times from what is seen on other OFP websites. This file is an update from the older version (1.0), and this update should fix most of the older problems with the version 1.0 addon.