If the goal is to take out the ship, with only 25km/s closing speed, one dont need any nuclear warhead. The blind sensors part is the though thing, but directed radiation is more efficient.Also, the earlier estimates for missile barrage (336 independent missiles, etc.) are based on Trident missiles, the MIRVs of which are all 100-kiloton warheads (Hiroshima was 16 kilotons). If you're firing smaller, 1-kiloton tactical nuclear weapons, you wouldn't be talking about hundreds of missiles, but thousands or tens of thousands per barrage. I think even a network of advanced beam drones could have difficulty stopping that.
Ok, i will read Night's dawn, and digest ideas, thanks.
(I have already wrote a part with captain is sweating as fighter approaches and try to take it out with laser... but i sure havent calculated with nanorad xaser...
Plan B would be stick to the idea, that no advanced high-sensitivity sensor unharmed if that x burst focused on entire ship, and continue that semi stealth with only sensors robust and sensitive as an axe from a light second...)