"Unlike the other Black Ops games, Declassified doesn’t have a Zombies mode. Instead you get Hostiles, your typical “survive as many waves as you can” affair, and a series of campaign-inspired time trials you try to run through as fast as you can while shooting wooden targets (think the training level of Call of Duty: Modern Warfare). Nihilistic thinks both modes serve as great training tools to teach people the ropes of CoD on Vita, though the time trials mode is the most popular internally since it has leaderboards."
I bought and played Uncharted, Unit 13, and Resistance so I dont have any illusions about blackops game play. But I suspect critics are judging it based on the console which is unfair and since there are no fps on handhelds there isnt anything to base it on. Anyone play farcry 2? Granted its a third person but it was early in the console cycle and it look almost like a ps2 game.
I suspect critics are not the deepest thinkers so they expect a top game day one without the usual learning curve in building said game to a machine that is like nothing in the world.