Halo Zero
 
 

Halo Zero is the prequel fan made game to Halo but it was created after Halo. The story starts off on the planet reach which is where the sparon II progam is started. The covenant find out where the secret UNSC base is and attack reach, tryin to kill all of the spartons. The covenant almost got the job done but then a couple of spartons were able to escape. Thats where you start when you are trying to escapes and it takes through until you get onto th ship 'the truth and reconciliation'. And that is where the game ends.