well, it depends on what you want to know.
if you mean universe wise, then:
I've modified a universe from CpKeyes, who allowed me to use his Gaian universe for my roleplay.
The Universe has multiple Ciral(Solar) Systems, that have been discovered and divided among the Gaian countries. the two economic,political and military alliances are the Allied Nations Union of Gradea and the Red Star Coalition of Draveg. these two alliances tend to go to war with each other often, whether it be over Minerals or Land division.
If you're talking about the setting, I'm split on 3 ideas:
1-a semi futuristic thread, that takes place in the Ciral system(the originating planet of humans.), before slipspace travel or High Altitude Drop Pods were invented.
2-a Futuristic thread that takes place in a few other Ciral Systems, when slipspace travel,High Altitude Drop Pods, and new species exist(this is before plasma is used for weaponry).
or
3. a High-Futuristic thread that Includes Alien Fighting, Power Armor, and many Species exist(Alien tech exceeds Human tech).
I,personally, want to do number 1 and 2.
if we do this, the File(such as 1) is split into different parts- like 1.1,1.2,etc.
each one would be for a different subject. like Aerial, Armored, and Infantry