This mod improves the Zero Hour game by fixing almost all bugs in the game, with tons of balances, improved AI, and many enhanced features. There are also additional stuffs for all factions and sub-factions including Civilians. This mod also including playable Boss General with fully functional AI.
Spy Outpost, or simply Spy Post, mainly serves as extra Internet Center slots that can house 4 Hackers each and has no build limit. In addition, this building doubles as an intel structure that has very wide vision range and can reveal enemy unit paths like the Listening Outpost trucks do, so try to place them in strategic locations. However, this building is not as tough as the Internet Center and counts as a defensive structure so they won't hold you in the game if your other base buildings were destroyed, so be careful!
General leang need to build a nuclear missile silos before building a spy post?
no, it is currently requires both War Factory and Airfield like her Speaker Tower, but that might change in the future if I see fit.