Complex sentence: M appeared for a time as part of Banshee's X-Corps along with Husk and Jubilee, following which she became an employee of X-Factor Investigations, in "X-Factor" (vol.3).
Split into simpler sentences: M appeared for a time as part of Banshee's X-Corps along with Husk and Jubilee. She is currently an employee of X-Factor Investigations, in "X-Factor" (vol.3).