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Keywords from Image Description:
mm ammo pac fire mmammopacfire mark closein weapons system markcloseinweaponssystem uss theodore roosevelt cvn usstheodorerooseveltcvn outdoor US Navy USN Mark MK Phalanx CloseIn Weapons System CIWS fires during preaim calibration PAC livefire test onboard the USN Nimitz Class Aircraft Carrier USS THEODORE ROOSEVELT CVN while