The Leone unit is commanded by Leone, a man form America who served in Vietnam, and was acused of being a traitor. It is unknown as to whether he actually is one. His unit consists of 100 men who had their homes stolen, destroyed or otherwise ruined by the US. They wield shields, AK's and grenades, and also have hijacked UAVs and Patrolbots. They are the main enemy in Metal Gear Ac!d, but the surviving members get treated with ACUA (Acting Cells Under Alice), which makes them slaves to Number 13 (Alice). It is believed that Leone also takes ACUA, as an explanation to him hallucinating Pansies.