[@Stekkmen]
Splatterhouse
Jet Set
Star Squad
Heartbreakers
Whippersnappers

Operation Detonation sounds good.

If we want to incorporate "Eleven" then the second part should be alliterative or rhyming.
Worm had "Slaughterhouse 9", but "11" is just not as eloquent.
If all of the members were jews we could have been "Levi 11"
Heaven Eleven, maybe.
Little Angels

Skullfuck Central

Tormentors
Tatterskulls
Malefactors
Bad Boys
Brat Brotherhood
Mischief Makers?
"Daddy Issues"?