Anyone who complains about B's being ruined is just butthurt that seals are harder to get now. They weren't worth going after anyway when they got zerged in 5 seconds, no-one would ever get any credit.

And when I said that A's should be made the weeklies, I meant that they should not drop rewards except to mark-holders and their party members and have their respawn dropped to, say, 5 minutes. Maybe keep the possibility of them dropping a Hunting Log even if you don't have the mark, although the only thing I think a zerg rush should be any good for is S ranks, where the damage they do to the hunting experience is limited. Heck, they might even help fulfil the spawn trigger.