It's the RHN Cimeterre-class LACs with Zizka.
An example of Zizka in action against RMN MDMs (not using Apollo control missiles) that were targeted on the RHN Cimeterre-class LACs (not hyper-capable units):
Italics are the author's.At All Costs, Chapter 9 wrote:Morton Schneider watched the Manticoran missiles knife towards his LACs like so many space-going sharks. A blizzard of counter-missiles raced to meet them, but the attack missiles' accompanying electronics warfare platforms were far too capable. CM after CM lost its target, wandering hopelessly off course. The first wave intercept killed only twenty of the incoming MDMs. The second wave of counter-missiles did better—over a hundred and fifty of the Manticoran missiles disappeared—but that left over twelve hundred, and he wasn't going to have time for more than another two or three CM launches. Only, if he took those launches, there wouldn't be time for Zizka, and in the face of that massive missile storm . . .
"Implement Zizka now!" he snapped.
"Aye, Sir. Implementing Zizka," Rothschild replied instantly, and smacked the heel of his hand down on the big, red button beside his tactical panel.
Two hundred Cimeterre-class LACs launched their full missile loads. Six thousand far-shorter ranged missiles, launched in three slightly staggered waves, went streaking to meet the incoming Manticoran MDMs, and Broughton watched his display narrowly as they spread apart, each bird positioning itself precisely to play its part in the "Triple Ripple." Designed to knock back the sensors and EW of Manty LACs, it ought to do a real number on missile sensors which had to be pointed directly towards their target at this point.
The lead wave of his missiles was almost into position when the MDMs abruptly changed heading. Schneider's jaw muscles clenched painfully as the attack missiles' vectors changed. Half of them were "climbing" sharply, while the other half "dove" equally sharply, and he swallowed a venomous oath as he realized what they were doing.
So one of their pickets who saw the Ripple did get home, he thought. And the bastards decided to do something about it. Worse, they figured out the possibilities for missile defense and did something about them, too.
The maneuver had to be the result of a preprogrammed attack profile. There was far too little time for whoever had fired them to change profiles that quickly on the fly. But whoever had done the preprogramming had timed it well. The change in attitude interposed the floors and roofs of the MDMs' impeller wedges between them and the Cimeterres' missiles just as the powerful, dirty warheads of the Republican missiles began to detonate. The solid wall of blast fronts and EMP which was supposed to blind and burn out the Manticoran missiles' seekers wasted itself against sensors which couldn't even see it.
All three Zizka waves detonated, and the flood of attack missiles which had parted around the Triple Ripple's roadblock altered heading once more. Their noses swung back towards their targets, and there wasn't time for another counter-missile launch.
Laser heads began to detonate in deadly sequence. X-ray lasers, designed to engage superdreadnoughts, ripped and tore at mere LACs, and space was abruptly ugly with broken and dying craft. Light attack craft shattered, vomiting hull splinters and bodies. Fusion bottles flashed like funeral pyres, and a tsunami of fire washed over Schneider's formation.
The evasion maneuver programmed into the Manticoran missiles as a counter to the Triple Ripple had blunted the defensive maneuver, but it had also broken the attack missiles' locks on their designated targets. They had to reacquire on their own, without guidance from the ships which had launched them, and their onboard targeting systems were far less capable than the fire control of their motherships.
Twelve hundred missiles reached attack range, but over half of them never managed to relocate a target before their overtake velocity carried them clear past the Havenite LACs. Of the five hundred-plus which did see a target, the vast majority concentrated on the most exposed, clearly visible targets. "Only" one hundred and seventy-five of Schneider's LACs were actually attacked. Of that number, seventeen survived.