[TerranC]

Umm... 25 turns?

It's more like at least 50 turns, Unless you set up extensive research colonies.

I did a quick start as terrans and kept on researching those techs:

To get ECM and Point Defense, you have to research Military Sciences that took me about 24 turns.

Projectile Weapons too me about 20-21 turns to get to level 4.

And to research ECM and Point Defense, it takes about another 33 turns.

24+33=57 turns.

Now this is only according to One planet, No racial advantages, and Low tech.

So are you sure it was 25 turns?