The Raging Schwa was one of the Fractal Legions, the militant wing of the Hand of Eris.  The first known sightings of the Raging Schwa occurred early in Era-2 during the rebellion on Ulrick Station in YE 212.

The Raging Schwa was not a regimented military force by any means, usually appearing as a disorganized mob, the only sure sign of their affiliation was the distinctive Schwa-with-horns insignia (also known as the Raging Schwa) adorning their weapons, armor, and bodies. 

As fighters in the Raging Schwa became more experienced, the vowels tended to drop out of their speech, replaced gradually by the "uh" of the Schwa sound.

Tactics

The Raging Schwa didn't tend to use much in the way of strategy when engaging in battle.  Their primary tactic was a disorganized headlong charge into hand-to-hand combat with little thought as to the consequences. 

Prior to going into battle, the warriors of the Raging Schwa entered a trance-like state that sent them into a berserk rage.  Armed with various hand-to-hand weapons, or with bare hands, they descended on the target of their rage, shouting their battle cry "UH!" (a vocalization of the sound that gives the Raging Schwa its name).

Notable Unit Types

Among the unarmed fighters, there was an elite force known as the Hummuckers (from "haymakers", with the "a" sounds replaced with the schwa sound).  The Hummuckers appeared to be flailing wildly in battle, but were actually using a form of martial arts similar to Drunken Boxing.

On those rare occasions when artillery was deployed, it often took the form of a modernized Hwacha, (a Korean siege weapon dating to the late 16th century).