Sorry guys but I remember that controls were very slow. I think you should imagine the difference between real life movement and virtual...there is a big difference, and arma in dangerous situations movements were very slow....
For example you couldn't run and change your gun...
It's a great game, I love it still now...but instead worrying too much for graphic (a lot of my friend couldn't join me for the grapich card) you should think to be more free.
Another bad thing I remember...was that IA could recognize you very far...instead you couldn't absoluty do the same with IA(it's bad for stealth actions). Sometimes I ned a IA to cover my back because he could spot the enemy faster then me.