How's the gameplay on this game?

Very close to the console ones. You do missions instead of one long chapter. You also get the ability to level up weapons and items, and sent teams out to battle and find you more stuff. And you can do co-op.

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(o)___(o) My Comfy Recliner
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Imagine playing MGS4 on Liquid Easy, with all the guards wearing ear muffs and blindfolds, and there you go. You have the gameplay level of Peace Walker