Error message

User warning: The following module is missing from the file system: backup_migrate. For information about how to fix this, see the documentation page. in _drupal_trigger_error_with_delayed_logging() (line 1143 of /home/tonbyu/dustoffheli.com/includes/bootstrap.inc).

Dog Tags

5 dog tags can be found in each mission, normally less obvious or hard
to reach places. Although missions can be completed without collecting
any dog tags, you’ll need as many as you can if you want to unlock the
three special flying machines such as the UFO.