Many times I have come close to a ship and have wanted to jump on it and slay the people on board. I think that when using the harpoon, you're able to drag the enemy in and jump on. Then, the gunner could board and do the fighting, and the engineer could deactivate their vital systems. Each with a weapon. The pilot could put the ship in park and keep people off the ship. I realize that this would take alot of work, but it would be a fun add on.