Quick wikibackground on this team:
Uncanny X-Force
In the aftermath of Bastion's attack, Wolverine felt that maybe he did not do enough to prevent the deaths of Nightcrawler and Cable. He attempted to get Cyclops to continue to sanction an X-Force team, but after taking full responsibility for X-Force's actions, Cyclops did not want the X-Men to be associated with killing any longer and ordered the team to disband. However, Wolverine formed his own secret X-Force team with Archangel, Deadpool, Fantomex, and Psylocke with only one rule: no one could know they exist.