[Imp]

So thats exactly what Marek said a strike at 2 bases not units in the field as thats not its job. You said yourself highly acurate but they will keep the launcher at a safe distance so decent time to target. Therefore attempting to strike a mobile target kinda destroys its accuracy completly it will probably miss unless they guess right. I dont know of any cruise missile attack not conducted vs a stationary target, I would say hardened buildings are its main target.
In game turns you would call it in & it would arrive several turns later during which time you cannot cancel or adjust it.