Coalition wrote:
For firepower, the AI guided missiles could use the Triple-ripple style of attacking. Each missile is a 60 gigaton warhead (each volley of missiles is 10 missiles, damage per volley is 600 gigatons). So the first missile comes into range, and detects anti-missile fire. It detonates, blinding the counter missiles. The next one detonates afterwards, repeating, and keeping the Manty ship blind.
The 9th or 10th missile gets in range, and lets loose the 60 gigaton warhead at point blank range.
Unfortunately, those missiles can only be fired at one volley per fifteen minutes, there will be a massive first wave, then the Tau will rotate shields in and out of the front line, to keep their shields strong.
The Manties will be able to dodge away from the Tau, most likely, but if the Tau can spot the shipyards, they will simply close and engage them.
I wouldn't be quite so confident about the missile ripple you are mentioning. The Honorverse uses a "flooding" system - overwhelming a target with missiles (including electronic warfare missiles) for a reason. The Manties CM do have some AI (stupid, but it does have sensors, etc...) so it isn't fully controlled by the ship post launch.
The Manties have a layered defense. This is the reason why laser-heads are used so that the last 30k km doesn't need to be traversed. After CM come point defense lasers, and then the sidewall. ECM is going throughout the process.
If you are only talking about a 10 missile set coming, the Manties will eat it for lunch. All of the ships of the wall (plus any escorts) can direct CM and (especially) point defense fire for the last 100K km. PD fire is cheap - they can blind-fire.
I think the Tau have better tactics than this.