A squad of rebels retreating to their base, or Outpost.

Rebel Outposts are often found on Halo Wars. They are easily spotted, as they are old UNSC bases or hangars taken over by the Rebels. Outposts produce Rebel Infantry and normally have watchover towers or missile towers. Outposts are very weak, weak enough that a Scorpion tank, or a Spartan team, can destroy them. Outposts are often not as strong as normal rebel bases, but have more defenses. In Skirmish Mode on Halo Wars, your opponent's forces, often if they're the Prophet of Regret, will not engage rebel infantry, outposts, or bases.