i find the warhammers kinda useless since you can't target them at specific subsystems or turrets. you'll NEVER achieve a MacDuff kill by hulling it (unless you have already handled the asteroid and are doing it that way for giggles). the only real solid use i've found for them is locking them onto a cruiser if they are present.
Of course I am not trying to kill by hulling it. However to trigger the reactor casing event it's hull must be dropped below 97% and Arquebus gives very low hull damage to Macduff while draining almost all of the weapons energy.(trust me, it happens in Insane.)Thus I use Warhammers. Also I use Arquebus (while damaging) to destroy the Mass Driver turrets (since VLS torpedoes turrets repair themselves) and Gattler for destroying the incoming Ouster torpedoes. So Warhammers quicken up the speed. Not that it makes a crucial or critical difference.
Anyways lets not change the direction of the topic to my gameplay.

No more questions after this. I play according to my convenience and I know that my gameplay is stupid. So just ignore me and my stupid tactics.