With Demigod using the same engine as supreme commander I cant stop to think whether or not the missiles in the game will be simulated or not.
Also one can look at the screenshots of Demigod and see the same flaws as in Supreme commander, one of them being that all effects are made to be seen from above so if you look at them from a lower angle you see that they are actually flat. It worked out in SupCom but perhaps they should put some effort into fixing it for Demigod which will be played as a FPS for some.