In terms of combat effectiveness (commanders and AI assides) what ship would most likly be better suted for navel engagements.
I belive that the Marathon Class Cruiser is far superier tho the Halcyon Class.
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the honeycombed http://halo.wikia.com/wiki/File:POA-InterdeckStructure.jpg body of the halcyon class was also very strong and can take a hell of a lot of damage