A significant blow to the Repliforce was the settling of the conflict which would later be known as the Great Repliforce War, resulting in the deaths of the organization's two major figures, Colonel and General. In reality, Sigma was pulling all the strings, manipulating events from behind the scenes. In return for this accusation, their leader, General, retaliated by pushing a movement for Reploid independence, an act that the Maverick Hunters viewed as a coup d'Р“В©tat.

In Mega Man X4, the Repliforce was collectively branded as a group of Mavericks, because it was believed that they had attacked the Sky Lagoon, an act really committed by the traitorous Maverick Hunter Magma Dragoon, who had personally sought a battle against Mega Man X. With wide-scale rioting causing destruction world wide, Repliforce was considered ultimately ineffective and itself potentially dangerous. Cain's benevolent intentions in creating Repliforce, the organization proved ineffective and Maverick activity increased at an alarming rate. Р”Р„t some point, the Repliforce had ownership of the Space Shuttle which would later be used by the Hunters after the war with Repliforce months later to destroy the Eurasia colony.Р”Вespite Dr. Some of these Reploids were present at the Sky Lagoon and attacked the Hunters when they came to rescue the city from Mavericks, which may have played a part in fueling suspicion that Repliforce was behind the attack on the Sky Lagoon. The Repliforce had Knot Beret Reploids as part of their forces, and these soldiers mainly used bombs and guns as weaponry. These soldiers used Ride Armor to battle opponents. These soldiers each wore yellow belts, with the red-white soldiers having a blue jewel on their belt, the blue ones having a green jewel and the green ones having a red jewel. The red-white armored Reploids had pointed shoulder pads, the ones with blue armor had round shoulders and the ones with green armor also had round shoulders but with semi-circular pads covering them. They were Reploids with red and white armor, Reploids with blue armor and Reploids with green armor.

The main soldiers of Repliforce were Reploids who were similar in appearance but wearing different armor. Despite their leader General's proclamation that they were not betraying humanity, the Repliforce still belligerently occupied many cities during the war and went so far as to destroy an entire city for subterfuge purposes. The Repliforce were shown to be quite ruthless during their war for independence. The differences were considered irreconcilable and the project a failure, so the Reploid was split into two twin Reploids, with Colonel having the fighting spirit and Iris the pacifistic nature.

These Repliforce scientists were the ones who created the Colonel and Iris, who were initially a single Reploid based on the persona of X as a Reploid with a peace-loving heart and a strong fighting spirit. Repliforce had scientists working for them to help increase Reploid efficiency. They were able to occupy multiple cities with ease during their rebellion, and fight a bloody war against the Hunters. Although this was a boast meant to boost troop morale, Repliforce was undoubtedly a force to be reckoned with and possessed massive Reploid power. Colonel boasted that the Repliforce was the most powerful military in history.

Mega man x4 colonel