The Valley of Death Add-on for Operation Flashpoint: Red River has 5 achievements worth 125 gamerscore.
Complete a VOD Rolling Thunder map without the convoy ever stopping
Destroy an enemy tank with C4 on any of the VOD maps
Complete a VOD Last Stand map with over 1 million points
Find the pilots & destroy the chopper in under 5 minutes on a VOD CSAR map
Obtain a Gold rating on all VOD FTE maps