I have it on PS3 too, I have done the challenges so have all the weapon unlocks, and have played through the security campaign. Gonna start the resistance one tomorrow - then I should be ready to roll when PSN is back up!
Just one thing I struggle with at the moment and thats the button layout - i keep swapping smart to L3 then back to L2 because self buff is normally L3 and I tend to need that in the heat of battle alot more (for a medic its like using a medkit).
Square to buff a teammate is also a bit of a pain because I have to move my thumb off the aiming stick and let the computer follow the player and apply the buff (many times i lose sight of my target in the splitsecond i am moving my thumb and end up pressing square and nothing happens).
Northern Irish 