Ps3 – way to reverse looking up and down

I have found the controls to be clunky as well with the OF series. I believe it is done for "realism".

What I will say is that OF is a very different kind of game from CoD (Which I'm sure you've noticed). And the controls are not as easy to manipulate; this is done on purpose.

I did have to adjust my controls to keep sane. Unfortunately I'm on PC and don't know about the control settings on PS3.

I would suggest that if you are looking for a more "realism" based game without clunky controls, check out Project Reality. It's a free mod for Battlefield 2.

I don't believe I've given you the answer you looked for, and apologize for that. Just providing my experience.

The aim assist is available only in the campaign not in the multiplayer. The way it works is that it helps you 'snap' to the target nearest to the reticle while aiming down the sights. So maybe that snapping action is throwing you off. You can disable it and try.

It takes time to transition from PC to controller and while keyboard and mouse maybe more accurate, you will get used to the controller soon enough.

Now to answer the other part of your question, there are some non-standard controllers (read cheats) that provide extra functionality like this one. But you can't use a keyboard and mouse to play regularly.