Killzone 2 video shows cover mechanics

I never thought cover mechanics popularized by third-person shooter Gears of War could be implemented in an FPS. The following Killzone 2 video tells me otherwise:

My main reason for reluctance is the view itself. The third-person camera gives the player wider peripheral vision that FPSes could never provide. As a result, hiding in cover becomes feasible because you, the player, would be able to see if your character is hidden well or if a body part is sticking out for your enemies to shoot.

Killzone 2’s “lean and peek” gameplay thrills me because I’ve never seen an FPS utilize cover mechanics. However, since the game is still under development and won’t be released until next year, we can only speculate if “lean and peek” works or not. Would the Killzone 2 gameplay be affected greatly by this mechanic, or is this just a gimmick?

For Sony’s sake, I hope it does work since Killzone 2 is a PS3-exclusive game. If it doesn’t, then Killzone is just overhyped freebie material that’s destined to be placed in a bargain shelf next to Haze.