There is a war between the Purples and the Reds. The Purples are surrounded. Defeat the Reds and their 3 bases in the Northern section, Eastern section and western section. Don't go to the South of the land until you have looted the bases and gathered some weapons.
Pay attention to your own base too! You've got 20 minutes! (Glitch: There will be 3 enemies left, consider yourself won at that point.)
