Increase the time lock for nuclear operatives and and nuclear commanders

[nut_ai]

20 is a lot and 80 is a shit-ton. Id be fine with it raised to like 10 for both maybe

20 is the same as normal sec-offs, and 80 would be around a month. I couldnt trust anyone to lead a team, especially with such uniqueness and tactics involved if they played this game for less than a month.