So on a personal level, I am trying to resist using swarm fleets but want to be prepared if one is used against me. What 5 point War force would you pick if you had to pick an Armageddon level ship and your opponent might use a swarm fleet?
As noted, the Adira is a good anti-swarm ship as the GEG cuts out a lot of light weapons.
The Amu strikes me as basically cheating - once you say you 'don't want a swarm fleet', picking a swarm-carrier is doing exactly that, whatever people say.
One of the best anti-swarm weapons out there is the mine - which means that the Ka'Bin'Tak is an obvious one. That said, there's no need for the Armageddon ship to be the one packing the mines. One of the best 'pest control' ship in the game (for dealing with lightly armoured swarms) is the Takata mine cruiser - it also does sterling double duty against fighters thanks to having four seperate mines instead of one big one.
The brivoki's partial immunity to criticals (aka shields) is quite nice, too, and you have the graviton guns for taking down the big guys (avioki main guns are a lot, lot scarier than many people give them credit for)
That'd make your armageddon choice a Brivoki - and I'd suggest an admiral as armageddon-priority ships actually make admirals sort of worthwhile... +1 cq is nice for critical hit repair, along with using gravetic shifters and pulling off scramble, scramble and CAF, whilst +2 initiative makes up for the lack of a command bonus, and leaves you with a choice to spare.
That leaves 2 war points and 1 battle point - some haltonas are seriously well gunned for their size, and Haliks are nice brawlers and escorts to boot.
Brivoki advanced warship
Admiral (aboard Brivoki)
Avioki heavy cruiser
Takata mine cruiser
Haltona Frigate
Haltona Frigate
Halik Frigate
Halik Frigate
Gives you a thoroughbred beam-team (more than capable of shooting up capital ships if need be), supported by two escort flak frigates and a long range bug stomper for swarm guttage.
