A question about "starting" weapons....

[Black_Knyght]

I have an odd question, but I need it's answer for the mod I'm working on.

I know when you start with "Standard" technology, (i.e. NOT Organic, Crystalline, Religious, or Psychic) you automatically start with the Depleted-Uranium Cannon and Capital Ship Missile as the default weaponry available to you.

How is this assigned, and how would I assign another weapon as a default starting one available?