Espionage rules - spying, counter-intel, mole hunts, sabotage, black ops
Research rules
Communications rules (tied to Research)
NPC rules for ComStar bringing down the Interdict, or dropping Holy Shroud on people (for pre-Invasion play)
Rules for WoB/ComStar player forces in the Invasion & later eras - how to be an Interstellar Service Provider for fun, profit, and the opportunity to read other peoples' mail
Orbital bombardment
WMD (the "family atomics", anyone?)
Random event rules (memory cores, pandemics, lust-crazed population booms, demands for a new stadium, etc)