Missile Silo should only be required for Level 1 to use Missiles, I can perhaps see Interplanetary Missiles taking the difference for Level 2, but even then doesn't seem quite as right once you factor say the 2-1 cost for the difference say again.

If there are any ideas and/or thoughts out there least for why there is the current system I would appreciate it, but until then I would suggest an interest of Level 1 Missile Silo only be required to make Missiles say for the Facility requirements of the Missile Silo to take to have them, rather be Anti-Ballistic Missiles and/or Interplanetary Missiles.


Thanks,

Kellogen