God forbid I'm here to tell you what's right and what's wrong because I can actually tell good gameplay from bad.
Killzone 2 actually has much better controls than R2 when you compare shooting from the hip or even aiming down the sights, you might have trouble with it, but people routinely execute headshots with the standard rifle from afar, compared to the R2 carbine where you can basically go scope and it's still fucking useless more than ten feet away, the problem with R2 is other than the sniper rifle and the marksman all the other weapons are extremely short-ranged, the whole weapon range and accuracy in R2 was just completely fucked up. And unlike Killzone 2, in R2 sprint doesn't feel like sprint.
In terms of boss fights, even a Killzone 2 mini-boss like the heavy is more interesting than fighting the stupid swarm in R2.
I'm not sure why suggesting better visuals is a bad thing, unless you like your games to look like crap, HDR lighting is pretty standard nowadays.