Complex sentence: Shortly after the release of the "F" single "Pripyat" Ash also made a song called "Lay Down Your Arms" available to download excusively by fans who had subscribed to the A-Z Series before the release of "Pripyat".
Split into simpler sentences: Shortly after the release of the "F" single "Pripyat" Ash also released a song called "Lay Down Your Arms". This was available to download excusively by fans who had subscribed to the A-Z Series before the release of "Pripyat".