This is probably basic basic basic, but I was brain-storming...
So the idea is two types of ships. One class is heavily armored, with CIWS, 10cm lasers, and AMM. It's designed to soak up a ridiculous number of missiles.
The second class is super fast armed with only larger laser turrets.
The idea is keep the tanking heavy ships up front, get the enemy to use up all the ammo, then dart in with the fast laser ships to take out the now-defenseless fleet.
Thoughts?
This is a version of the basic tactic that my Zogs have been using. The weapon of decision for the Zogs is torpedoes, mounted on a small, fast attack ship. As originally intended, the attack ships would shelter under the anti-missile umbrella of dedicated escort ships, and then once the enemy had run out of missiles, the attack ships would make their run on the enemy fleet.
This strategy works, however, there are a couple of "issues":
Issue number one is that you never know for sure that the enemy actually ran out of missiles. Is the firing lull actually the end because the enemy ran out of missiles, or are they just reassessing their targeting priorities? This is a crucial question, because shortly after you detach your attack ships to make their run on the enemy fleet, they will be out from under the missile defense umbrella of the escorts and will be vulnerable to missiles.
Issue number two is related to number one, sort of. Assuming the enemy did actually run out of missiles and your attack ships are catching up with the enemy fleet, you will likely run into the same thing that my attack ships ran into, offensive use of short-range anti-missiles. If the enemy ships being pursued by your attack ships have anti-missile missiles they will invariably dump their entire stock on your approaching ships, and while they will only do one point of damage each they will wear down your armor eventually, especially if your attack ships don't have any missile defenses (mine don't).
Issue number three is crucial - if your attack ships are slower than the enemy fleet, you are done, period, unless you can pin them against something they have to defend.
Kurt