The keg_kiowa.zip file you have requested: Addons / Vehicles / Black Kiowa Warrior - 570.18kb 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:
Adds a new, black Kiowa Warrior with a minigun and seven rockets. The minigun fires approx. 84 rounds per second (5000 per minute) and it has 4000 rounds total. The gunner seat is turned into a cargo seat so you can have someone riding with you.