After doing some save testing with the curise missile turrets and high point comando raids, raids which have become typical in my late game save, it has become apparent that the comandos can "outrun" or evade the blast. This coupled with the long reload times means that the turrets rarely get more than one shot off before the comandos get too close to the base. Im not really sure whether they were made more for destroying the bases of other fractions, or if im just severly misusing the turret.