X-Factor

Overview
X-Factor is a group of Mutants who defected from the X-Men after finding out about the large amounts of Mutant Trafficking that was going on in secret and Mutant gang violence. Their tactics involving liberating Mutants and eliminating their oppressors were deemed unethical by the X-Men causing a rift between the two teams.

History
A few X-Men members consisting of Cyclops, Nightcrawler, Havok, Forge, Marvel Girl, Firestar, and Colossus decided to investigate Genosha after Magneto had claimed the land as his own and created what was believed to be a sanctuary for Mutant-kind alike.

Genosha was unbelievable. A home where Mutants can live happy and use their abilities freely. It felt almost too good to be true. Cyclops, Nightcrawler, Colossus, and Marvel Girl left having the slightest bit of faith that Magneto had turned over a new leaf and desired nothing more than amongst Mutants instead of causing war and turmoil between them.

Havok, Forge, and Firestar dug deeper into Genosha's files on it's Mutant inhabitants to learn that not all Mutants were arriving safely to the island. They snuck down into the lower levels of Genosha where they found some members imprisoned like Jamie Madrox, Kyle Gibney, and Guido Carosella. They were reluctantly being monitored by one Lorna Dane.

Lorna Dane was the youngest of Magneto's three kin. She monitored the "misbehaved" Mutants under her father's orders. Lorna was timid and feared disappointing Magneto in any way despite greatly disagreeing with his methods being displayed. She warned the remaining X-Men of the torture these prisoners have faced as well as the plethora of Mutants that were supposed to make it to the island but never arrived under mysterious circumstances.

Havok convinced Polaris to break free of her father's hold on her and help release the prisoners. They formed a team together to track down the missing Mutants and eliminate their captors once and for all as Mutant trafficking manhunters.

Trivia

 * Despite the rift caused between both the X-Men and the X-Factor, Havok and Cyclops still care for each other as brothers do, but still fight on occassion.
 * Wild Child was tortured the most by the MRD before being rescued by the Brotherhood of Mutants only to be continuously tortured mentally by Vincent Thorton in Genosha.