The Sentinels are a group of elite soldiers who are partially immune to the Chimeran virus as experimental byproducts of Project Abraham. Because of Project Abraham's experiments, they have been gifted with the superhuman abilities that most Chimera display, such as heightened senses, abnormal strength, and the ability to partially heal themselves. They can essentially be described as being part human, part Chimera. Because of this, they are the army's main defense against the Chimeras.
Battle vs. Colonial Marines (by Samurai234)Edit
In a large abandoned city, six Colonial Marines are scanning the area, looking for any signs of trouble. One of the marines spots a Sentinel, and tells the commander, who orders the team's sniper to shoot him. The sniper aims his M42C Sniper Rifle at the Sentinel, and shoots a bullet in his neck.
The marines then continue their search and approach an abandoned subway. Meanwhile, five sentinels see their dead comrade and realize their not alone. Back at the subway, the marines continue scanning the subway, when a hidden sentinel pops out and shoots one of the marines with his Rossmore 238 Combat Shotgun.
However, another marine manages to kill him with his ZX-76 Combat Shotgun.
The Marines walk out of the subway where a Sentinel armed with a IWAO-R Chaingun is waiting. The Sentinel fires his gun at the same time as one of the marines fires his M56 Smartgun, and they end up killing each other.
As the marines continue their search, another Sentinel armed with a Marksman Sniper Rifle shoots a marine in his head.
As the remaining marines keep looking for more Sentinels, another Sentinel armed with a Bullseye manages to eliminate one of the marines.
The marine commander hands his soldier a M240 Incinerator unit and takes cover. The marine sprays the room with fire and manages to roast the Sentinel.
The marines decide to split up to find the remaining Sentinels. The soldier manages to find one of the sentinels, but he is armed with a L206 LAARK. The Sentinel fires a rocket at the marine with the M240 and blows him up.
The Sentinel smiles at his Work, but suddenly he is riddled across the body with bullets. Nearby, the Marine commander armed with his M4A1, continues his search for the Sentinel's leader.
The Marine and the Sentinel both fire at each other with their rifles, before they decide to switch to their pistols. The two keep firing at each other until the Marine manages to shot the Sentinel in his leg. The marine points the gun to his head, but he finds out he's out of bullets. The marine reloads the gun as the Sentinel switches the HE.44 o it's secondary fire option. Just as the Marine has finished reloaded, The Sentinel fires a grenade bullet at his head, blowing a hole in it.
The Sentinel, mourning the loss of his allies, contacts the base to report what happened.
The experts thought the sentinels won mainly because being half-human, half-Chimeran, they proved to be better soldiers. Their weapons also superior.