Created sometime after the Chimeran occupation of Europe, Brutes were most likely produced in response to the need for a heavy support unit that was able to combat human forces in smaller, tighter spaces as Titans could only be deployed in larger more open battlefields. Wielding a chaingun, Brutes have been known to wipe out whole squads singlehandedly, as a result, in response human military forces have developed the IWAO-R Chaingun as a counter-weapon when combating these tough Chimeran units. Additionally, Brutes are extremely tall, which has the psychological effect of intimidating human forces when encountering these creatures, often causing them to flee. Only Titans and Hammer's are taller than Brutes.
Deployed across Western Europe during the events of Operation Overstrike, Brutes are first seen participating in the Siege of the Maquis Fortress in Luxembourg. One such strain kills two Maquis soldiers attempting to seal off the underground entrance to the base. Often accompanied by Advanced Hybrids, this makes them extremely dangerous to combat, as the Advanced Hybrids can serve as distractions, which allows the Brutes to peel away significant portions of the player's health.
Fortunately, due to the limited nature of male human bodies, Brutes are rarely encountered during Grayson's journey. Many are often seen in Chimeran structures, serving as a defensive force against Allied forces. However, a number of Brutes have been seen participating in Chimeran offensives.
By 1953, Brutes have largely been phased out during the invasion of America, with their apparent successor, the Ravager being deployed throughout the invasion. Ravagers have likely been designed in response to the apparent weakness of Brutes, having been equipped with a Brute Minigun and a mobile force barrier.
- Brutes pack a lot of firepower, and being exposed for too long while fighting them can result in a quick death. It is therefore recommended to take cover when they show up on the scene and either make use of the Fareye FR-1's secondary fire to slow time and score a few headshots, or fire away at them from behind cover with the Auger WS. *Shooting Brutes with a LAARK generally results in a one hit kill, but it is recommend for the player to conserve the LAARK's ammo for more difficult opponents.
- The HE .44 Magnum, grenades, and XR-004 Allure are excellent use against them. Brutes will often advance on the player's position if the player donesn't shoot them, so it's best to keep them occupied. If they get too close, the firepower from their chaingun is even deadlier.
- If the player have unlocked the Longbow 1S-1K, an overcharged shot from this weapon to a Brute's head will usually result in, as the weapon's name implies, a one-shot kill.