Activision has uploaded the manuals for Call of Duty: Ghosts for all platforms, including the PS4. The PS4 manual shows that you the new touchpad on the PS4 will be used to bring up the leaderboards.

And, the R2 and L2 button will be used to fire and aim; the R1 and L1 will be used for equipment.


SOURCE: Ghosts PS4 Manual 

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