Main targets are the parish elevator and the spider's nest below
Get our leanest/strongest anon to spam attempt to climb the chains on the firelink - parish elevator until it works. Encourage him to prevent hollowing. Hoard armor and clothing to make cloth ropes long enough to eventually climb down the stone walls and directly on top of the spider's nest, skipping the whole swamp. Keep these travel routes manned and safe
>What combat against gargoyles and queelag?
Amass the biggest army in front of the door and enter all at once. Bait enemy attacks and abuse numbers advantage. Be willing to die