Erstmal, welcome to this group of complete sub maniacs

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Then, compared to AOD, SHIII + GWX3.0 is on par (gameplay), without GWX it's way back. In stock version you could play it at 100% like a shooter, if you try this with GWX... well... some simulated fishes gonna have some good feasting. For me, it's worth the time for learning.
I can't compare it to DftD (errr, what is DftD).