The Hellfire was added as the worry was more small attack craft like IRGC cigarette boats and pirates on fishing boats than attack capital ships.If there's space for a vls, why did navy try out the hellfire vls and not mk41 based armament?
Against small craft Hellfire would be more than enough. Why waste multi million dollar Harpoons on a fishing boats? LCS was built for Policing, Anti piracy. Asymmetric where the worst weapon the baddies have is a boat loaded with explosives.