Any old WWII PT Boat skippers must be drooling at the thoughts of what they could have done with those in WWII.
Because of their torpedo armament, PT boats could, and occasionally did, kill capital ships. This boat can't do that. It's big enough to be armed with at least Harpoon sized missile, which could kill at least cruiser or destroyer sized ships. But it's not.
It's also not as fast as a WW-II PT boat, which could do at least 40 knots. The Cyclone class is also larger, about twice as long. About the only armament the PC's have that the PTs didn't would be the Stinger missiles. At least the late war PTs. But then there those torpedos...