There are 14 Pacifican enemies in Fracture. Each type is attached to ONE weapon only in-game, though they are capable of using a variety of Pacifican arms.

Rank/Name Description Weapons/Equipment
Light The weakest form of infantry which is built up of volunteers. Headshots, which can be executed with either the Raptor rifle or the Scorpion sniper aren't entirely necessary although it means the difference between life and death. They are among the most common of the Pacifican military. Usually equiped with Pacifican SMG, Raptors, or Bangalores.
Medium Also called "Raptors", Sheridan's army isn't completely made up of volunteers; some of them are war hardened veterans. Pacifican Mediums are equipped with Raptor rifles increasing their range and damage, and they are more likely to throw Tectonic grenades to raise the terrain. Special caution should be taken when engaging in close range as they are tougher than Lights and deal more melee damage. Mediums are able to use Pacifican SMGs, Raptors, and Subsonic/Tectonic Grenades.
Sherman A large extremely dangerous soldier that has a fail-safe device that activates when it dies. it has a large grenade launcher that shoots out 6 extremely dangerous sticky grenades at a time that explode in an array of neon green light. Its name pays homage to a 20th century tank of the same name. Their thick armour can be exploited and the head becomes their major flaw. A large, remote detonating, grenade launcher attached to his arm.
Hydra Agile, just barely human and are surrounded by a red aura. extremely difficult to kill. Hydras jump to high altitudes to avoid enemy fire while shooting down on their targets for massive damage. They wield the Bangalore rocket launcher with one hand and can fire it while jumping. Their melee attacks are also devastating, and they are much more durable than even Pacifican Medium. Hydras require a short delay before jumping again; fire should be opened on them while they are grounded. Bangalores
Spike Hydra (Variant) This variant deploys modified spike grenades that generate power to the top of the spike upon landing on top of the spike, creating a shield. This means while the Hydra in question is on top of the spike, it cannot be killed. This makes them much more dangerous to engage to compensate for the lack of teamwork from other Pacifican units. Unconventional means such as the Lodestone rifle will help to draw them from the spike. Less effective methods include destroying the spike the Hydra is on, as well as sticking Black Widow grenades to it, then as soon as it leaves its spike, detonate.

An interesting note about the spike grenades is that they can be used by the player to give them a shield, also making them invulnerable to direct fire, though because of the lack of accompanying enemies with the Spike Hydra, this is of almost no practical use.

Invader An Invader is only vulnerable in the head, explosions, or to melee attacks. They are deadly at close range especially at higher difficulties. Their weakness is range, and in that area are much easier to deal with than most other enemies.  Invaders Shotguns
Cheetah An almost look-alike of a light with glowing green and black arms. Augmented for greater speed and agility, their speed seeming almost like teleporting from place to place. They give the illusion that their health resets upon moving. Pacifican SMG
Bolla A large, muscular, quadrupedal horned beast. Its supreme strength is bolstered by a bioform generator similar to that of a Rhino, which splatters opponents to death. The Bolla is only vulnerable to the spinal ridge, face and stomach. When a weak point is sufficiently damaged, the Bolla's life force is permanently damaged, but can no longer take extra damage from a dormant weak point. To defeat a Bolla is to destroy all three weak points.

Sheridan takes on a unique grey/black Bolla form near the end of the game. He can summon Creepers to his aid, and once a weak spot is destroyed, he generates a force field powered by various spikes. Inside the force field. he will build up power and can fully restore the dormant weak point given enough time, forcing the player to destroy the same weak point again. On higher difficulties he may be supported by Spike Hydras as well.

Rhino Gun