1. Add to war tech tree for enhancements such as:
Better intel gathering +5%
Better analysis +5%
Stay undercover better (success +5%)
Specialize types of counter. Intel, Sabotage, Disinformation, Assassination, etc
2. Transportation:
None needed if race to attack is adjacent to your ZOI
If further away have to build a "Spy Transport Ship" to get them there.
If the race to do counter intl is an allied enemy then still the transport thing
3. Starbase modules so one can set up information gathering space stations. Modified military stations.