What ruined games like Tomb Raider for me was the addition of new features. The "sprint" and the "crawl" moves just meant frustrating time puzzles and crawl spaces. If it's not broken, don't fix it. I've loved GTA from day one, I don't want to see my beloved series ruined by extra features. For example: I don't want "missions where I have to swim" if they decided to incorperate swimming. New stuff is good, but not if it changes the gameplay too much.
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