The resistance series have always been polarizing for me. Liked the first game because of the variety of the weapons you get carry around and the mindless circle-strafing style of shooting. Then Resistance 2 came out and ruined everything good about the first game.
I don't mind two weapons and regen as long as they're used well. that's not the case with R2, you die too bloody fast and barely have the time to react to anything. I don't mind challenge but when you put cloaked enemies in tight, linear corridors that literally spawn in front of your face and can one-hit kill you, you've crossed the line of challenging gameplay to just being a cruel bastard.
I might actually pick R3 up because of the co-op and return of the weapon wheel. I'm also interested in how this game rips-off Metro 2033. Love that game.