SAVAGE X-FORCE
Shard - Leader, Strategist
Silouette - Infiltration & Extraction
Cluster - Weapons & transport
Trinary - Tech Expert
Thornn - Muscle, Wildcard
It's a group of lesser known, highly skilled mutants, assembled for intelligence gathering and asset extraction.
Possible 6th member, Mercury. Her power set is great for espionage, but I don't think her character is interested in being an X-man