The weird thing is that, even if your 6.6/10 global score feels spot on, I keep playing the game despite the horrible A.I..
i was like that for a while. I guess being in a pc gaming drought made me thankful for something to play, but after 5 missions I finally uninstalled. Was getting very samey.
as for the gfx, I'm afraid that is the weak link in my system (. but I can only judge against other games run on comparable settings such as Doom3, Far Cry etc and judge it from there.
that said, I'd never review a game that i had to run on 'low' for example.