Hi Fally, Vanilla simply means original...as in the factions that come with the game as standard..hope this helps you..?

Vanilla is the content you start out with, just to make it clear.

Thank you very much guys I owe you one

Think of vanilla like the icecream flavor. Its white, plain, and not much to it, but if you add a bit of sprinkles, you then have it "modded." The game you buy is vanilla, but you can download content from other people which are known as "modifications," or mods for short. Keep in mind that vanilla applies to all games and it covers everything: graphics, lighting, UI interface, mechanics, and so on. There are also total conversions (complete overhauls).

well said and clarified whole situation james :)