Nuke starting condition rebalance, op number scaling rebalance.
Fixes #4145, nuke ops can choose their names on spawn-in
Merge remote-tracking branch 'upstream/dev' into dev

Conflicts:
	code/game/gamemodes/nuclear/nuclear.dm
Where the hell did this even come from?

I should probably start checking for these things
Merge pull request #4149 from Kilakk/dev

Made nuke ops able to choose their own names on spawn-in