[quote=@Murtox]
<Snipped quote by Willy Vereb>

Thats truth , with only railguns you can shoot out a ICBM (Because of the very high velocities of the shell) , but imagine nuclear shells in railguns or beaming earth from the space with largue lasers cannons  , etc.
[/quote]Well, nukes are banned to be brought into space.
And the only way you can make a very powerful killsat like that is by using nuke-pumped x-ray lasers.
Not to mention the fact we only talked about nuclear weapons. The GM explicitly banned superpowered energy weapons, IIRC.

Also railgun accelerations are so great it'd likely destroy any nuclear device before it even leaves the barrel.
And if not, then it won't be any better than the already existing concept of nuclear artillery.
Anyways, like I said, we already have technology to identify and intercept mortar shells on flight.
Just imagine the situation in 2050.
Also keep in mind that nuclear artillery shells are relatively small so their explosive yield is negligible compared to other nuclear weapons.
That being said, I do plan a nuclear variation of the Toldi IV tanks which uses 160mm nuclear shells.
Basically they are used for anti-fortification purposes.
Or at worst to take out larger military targets like bases, camps or airfields. Although these are more likely to happen with nuclear artillery than the tank-launched variant.