Thanks for above, very helpful.
I personally find the tech tree daunting... And I'm an avid civ4 player... I guess it's because in civ the tree is based on real history to some degree... So we intuitively know the path to take And understand the merits.
so I have a few questions (playing as terrans)
1. Is there a unit tree? is there a general rule on how strong your ships should be in each era?
2. what techs do you go after to begin with?
3. do you build multiple shipyards or pool the manufacturing to one.. and best way of doing this?
4. For the map sizes what pc do you need to be able to run them well? (I have I7 920, 12gbram, hd5800) and is a bigger map with more ai more fun?
5. What game speed is best? I guess it might scale with map size?