It's a fascinating problem: how do you stop an unstoppable mutant? Well, you harpoon him again and again, until he resembles a hedgehog with multiple chains dragging on his body. Oh, and make sure to poison some of those darts, while your trained ninjas haul him to a stop and give the poison long enough to work.
This dynamic piece of concept art shows the vast crowd of fighters surround the adamantium-boned mutant and start swinging; the finished film showed the faceless mass using less risky tactics and doing the Wolverine as much damage as possible from a distance before they risked closing in like this. You have to admire their commitment to avoiding having their limbs sliced-and-diced.