DLC or Achievements

THQ have owned up to an issue with the latest piece of DLC for Metro 2033. Players who downloaded the 'Ranger Pack' DLC have found they can't earn any of the achievements related to the DLC. Unfortunately, the pack was released 3 weeks ago and THQ have only now admitted there is an issue and they are looking into it and ask for gamers patience. Better late then never i guess, but you think they might have actually looked into this during the months they spent actually making the DLC.