Quote Originally Posted by Evil_Monkey View Post
There isn't really anywhere you can look it up, except using designs from h1, h2 and h3 and modifying it.

Unless there is somewhere that has some specific rules we must abide by so that the structures are classed as forerunner.
In a way, there are certain rules. But if you've remade a structure from Halo 1, and it doesn't look like it's forerunner, clearly you've done something wrong.