Nuke Ops will get to rename themselves individually

- Last names used to metagame who the members were
- Nuke Op leaders that choose terrible last names to make names like "Jerry DOUBLENIGGER"

This aims to solve these issues.

Only the last name can be chosen, to prevent players from using their regular names to blend in easier.

If they still want a family name (why) they can coordinate with each other to do so.

Additionally, Quick-Created nuke ops will get to pick their name. Admins will also be able to let them pick a new name via TP.