Chaos Temple
The Chaos Temple worships the Blood God. They have magical capacity, extreme fanaticism about their religion to fuel them, and high technology, including powerful berserker power armor troops. This combo adds for some quite brutal and interesting fights.
CMF
The Company Must Fall, a rebel organization against the moneygrubbing Company (see below). They called the Company Must Fall simply because the Company no longer has a name. In time, some people had become fed up with the Company's unfair business practices (to say the least), and decided to pick up guns and so something about it. They spread over many, many planets and became a formidable force. Unfortunately, they have been defeated on the planet where Power Struggle is going on.
A greedy, semi-evil corporation. After years and years of corruption and power-mongering, the old name has been forgotten, and never used by anyone, even the Company themselves. They are "the Company." Arguments exist over the original name. All this is certan is that the name begins with a C, which is what is proudly emblazoned on most of their products.
Emperor Surl
He is a small egg dude with a fanatic love for animals and a lust for power. This has lead him to the conclusion that Tribals are the supreme being. He has a somewhat formidable army consisting competely of animorphic animal people and genetically engineered creatures of his own design. A little dude who is 1 1/2 feet tall and rides in a weird little pod-chair, armed with some weapons and shields.
Karanda
Mafia
What is there to say? A bunch of generic mobster guys recruiting warriors. They come in several varieties, like Japanse, Russian, and "others" (like a vampire one).
Tribals
Animals who have acquired the shape of men. "Like Bugs Bunny, only real looking."
U.S. Government
Mailmen
And, last but not least.... Ever heard those rumors about disgruntled, kamikaze mailmen? Imagine this disgruntled myth armed with many powerful weapons. The mailmen may not be too intimidating, but you'd be surprised. This future requires very disgruntled and protective mailmen.. ah hem, mail carriers to be politically correct (Miss Mailwoman, put down the minigun)..... mail carriers. These guys have taken out powerful people with ease. Do not underestimate or start any sort of fight with them. Please. Their smallest weapon is an auto-pistol, and the largest... No, not while the children see.