"Large aircraft carrier"
Two hull ship like a katamaran. The runway is on the center bridge that connects the two hulls. Each hull has two forward facing catapults. Its RWR designation seems to be an acronym for H Carrier in reference to its shape.
4 AA gun turrets, one on each corner of the ship
2 SAM launchers, one in each rear corner. These are IR missiles similar to the ones on the IR APC, but based off the RIM-116 Rolling Airframe Missile system.
One bulbous radome on the bridge. This main radar is denoted as HC on the Radar Warning Receiver (RWR).