While every region has its own special regional group tech pool, many of those regions are lacking a full range of weapons. Some examples of technology that there is no generic version of:
- Aircraft
- UAVs are solely limited to modern superpowers.
- Intercontental scout UAVs: I think limited only to Russia (they gets the "Zond 2" with a 12000km range).
- Combat/Armed UAVs: I believe only EU nations and the US get them.
- Helicopters
- Airborne Lasers
- Sci-Fi Fighters (e.g., phaser fighters)
- Nuclear vessels
- Nuclear capital ships: (I think only Russia get one, the Kirov). Also the same for nuclear escorts (e.g., the electromagnetic cannon DDGs)
- Nuclear carriers: Both regular and ion shielded carriers. Only superpowers get them.
- Nuclear submarines: ditto the above
- Missiles. So many missiles. There's only one cruise missile and one anti-ship missile to cover the hundred years of technology from 1940-2040
- AGMs: Absolutely no short range anti-tank/anti-infantry guided missiles. None whatsoever.
- Nuclear Missiles: Absolutely none. No ICBMs, not even freefall dumb bombs.
- Cruise Missiles: There appears to only be a single type of cruise missile in one hundred years. There's not even any upgraded versions like Mark 2, Mark 3, etc, to take advantage of tech advances.
- Thermobaric Missile: Same as above.
- Non-Nuclear Ballistic Missiles: SRBMs, MRBMs, etc. I think only communist nations get them.
- Land Units:
- Long-range anti-air missiles: There are no generic ones. This leaves many nations with absolutely no defense against high air targets (on top of the massive range disadvantage, as mid-range SAMs only get 1/3rd the range of long-range ones).
- Amphibious Hovercraft: I think only Russia and US get them. Maybe one or two other nations.
P.S.: A minor bug, the Russian Carrier CVN-1144 Chabarovsk appears to be a nuclear carrier (1000 fuel, 1 million km range) that requires no uranium to build... and since it only requires "Naval Vessels '94," I'm guessing it's a bug rather than being fusion-powered.