This might sound familiar because a big part of the DeepWater program was a tilt rotor UAV called the Eagle Eye.
Reaper is a relatively large UAV with a max. takeoff weight of 10,494 lb (4,760 kg). That is about a thousand pounds more than an MH-65 and more than four times the size of the Eagle Eye. Still, if the Marines do succeed in creating a vertical take-off UAV, it may be something the Coast Guard will want to use.