I think since the Hamilton class was built to inter-operate with USN ships, it might be able to integrate the Harpoon. Besides, I think its great news. Harpoons for our Navy and probably for our future Air Force.So... The PN is supposed to arm the Hamilton-class cutters: Philippine Navy to arm US-acquired ships
"...the Gregorio del Pilar’s weapons system would be upgraded with Harpoon antiship missiles—described as a modern, all-weather, over-the-horizon defense system. "
I wonder how costly this will be. For sure the Harpoon needs a radar/fire control to support it.