[PR] Make NTSO only available if a HoS has joined the round

[KikiMofo]

Honestly I always thought NTSO was going to just be a joke job and not something that actually sticks around. As much fun as it is to start with the big blue armor and a gun I don't really see the point in it. It doesnt really seem much more powerful than just a regular security officer. Its just usually used by HoS people that want to be special sec but HoS role is already being used. I see nothing wrong with this PR.