Currently I have been hard at work with the Nekoketsukei Imperial Army, and fooling around with them. Upon this I discovered how to add superweapons and I took the liberty of making one.
This building launches a single missile of a type. Depending on what side it might be a different missile. But right now I only have 1 of them, the Nekoketsukei Anthrax Kiba Kitsune Yagotsu "Jigoku" Missile.
It is such a powerful weapon, it takes 15 minutes to charge, but when launched it can destroy any base, and leaves a poisionous anthrax field. It is the msot dangerous weapon in the game, and in the story the 2nd most powerful weapon in the world (The Nekoketsukei's "Nekosaba" version is the full version of it & can kill off a country the size of USA & Canada!) And now I currently don't have any pictures of the silo, but check in the Image Gallery & you might find some stuff when it comes up!
The silo also by the way requires Battle Lab, Control Tower, and Rank 5 Silo Purchase. Also the Shoudo & probaly the dual Clan sides wont have them, the Shoudo are going to have the Particle Ion Cannon & the Clans will have a secret weapon...