Louisz27 wrote:
BeamTHunderGoGO wrote:
I've also got it planned that the 4 space marines are going to land on a planet that is being invaded by the CIS, and help the people of said planet
What is the CIS? Is it a Star Wars thing or is it a Warhammer 40k thing?

Confederacy of Independent Systems led by Count Dooku and the Separatist Senate. Includes the Trade Federation, the Commerce Guild, the InterGalactic Banking Clan, and the Techno Union among others. Seceded from the Republic shortly before Attack of the Clones and was the side opposing the Republic during the Clone Wars. Was disbanded after its leadership was destroyed by Darth Vader. Also known as the Separatists.

This is probably more information than you need to know.

EDIT: I will consistently give you more information about Star Wars than you need to know.