Are you trying to install the game specifically to play the , or Arma 2 on Steam
: Torrents require at least one person with 100% of the file to be online. If the "Seeder" count is 0, the download will never finish. File: arma.2.combined.operations.zip.torrent ...
: Trusted retailers like Amazon and Instant-Gaming also sell Steam keys for the game. Why is the Torrent Stuck? Are you trying to install the game specifically