bring back the weapon wheel. I admit I don't play a lot of shooter, but what other game give you variety of unique weapon at all time? other big name shooter like Halo, Gears, CoD and KZ don't have it. it felt really unique to me when I first play Resistance 1.
also, bring back the bleak and solitary atmosphere in R1. R2 is more depressing story wise. but the environment and atmosphere feels fake or made up. like an intricate film set, but you know it's not real. not as immersive as R1 imo.
for other possible addition. well, I guess weapon customization might be cool. like perhaps adding scope to bullseye, or maybe some accessories that give it different ability.
I have to admit, even though I like them both, R1 and R2 felt like a totally different game. if they want to take this trend and make R3 a totally different game too. well, I hope they're taking a Metroid like approach this time with emphasis on exploration, weapon upgrades to reach new areas etc.
Hale's certainly got the power to make the gameplay more unique this time.