Trebuchets are good, I already added them at Engineering. What I really want in artillery is an SP (self propelled) Howitzer, like the US M-109. I would like to see early steam powered ships, like ocean liners and dreadnaughts. Something to bridge the gap between galleon and transport, ironclad and battleships. I have them at Replaceable Parts in my game. A cruiser would be a nice touch. Early steam (battle cruiser) and an oil powered (WWII style). All could upgrade to AEGIS cruiser. Adding Balou's Light Infantry (Modern) couldnt hurt. And attack choppers, at Smart Weapons. Those are alot of fun. The fighter upgrades to jet fighter, but there is no supersonic bomber. How about an A-6 or B-52 ? Had enough yet? Thanks Firaxis.