"COMIC URBAN LEGEND: Marvel changed the names of X-Force, Deadpool and Cable to avoid paying Rob Liefeld royalties. STATUS: False" Like that. Saying "at the time, some conspiracy theorists argued ...

X-Force is a more aggressive and black ops team of the X-Men that was created by Cable in New Mutants #100 (1991). This was his way of creating a strike team to take on threats before they escalate.