For people used to shooters it takes a few deaths until getting used to the different control settings (one tends to press always the same button to shoot)

, I don't know if it is the same with the PC.
It is a different kind of shooter, in a way similar to the James Bond games, similar but no the same.
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If real is what you can feel, smell, taste and see, then 'real' is simply electrical signals interpreted by your brain
From The Matrix