@thegoldsmith sorry but i am still a bit new who are the red army i haven't heard of them except for people saying that they are a bunch of raiders

The Red Army were one of the biggest factions on the server by the end of 1.8, If you look through the forums you'll see many of their posts.
On 1.9 they were active for a bit before entering a haitius.
Basically, There were a pretty varied faction without any obvious aim, Their foreign policy posts reflect this.