Hi.
My specs:
AMD Phenom II X4 965 BE
A-DATA 4 GB DDR2 800 MHz
GigaByte GTX 560 Ti Ultra Durable 1GB
MB Gigabyte MA790X-DS4
SEASONIC 500W
Coomaster Elite 330
Windows 7 Home Premium
No overclocking.
Only antivirus soft running in system during playing COD.
Playing max details and max resolution. Only effects are set to medium.
No MODs applied!
When experienced the problems, I was trying to "play" with settings, but results are the same.
The sim is absolutely GREAT, runs smoothly, but...!
* Campaign - already during first mission with Hurricane it freezes. Have to CTRL+ALT+DEL and quit from Applications menu in Windows.
* Ground stutter during low level flight
* (dont know if its a bug) some key short-cuts doesnt work when in external view (opening canopy and such)
* sometimes when I open the canopy or eject it, the lower part of front dash panel changes textures to some super-low-res-mess
* extreme framerate drops when effects are generated. Smoke, clouds, fire etc....only when close to the effect. During touchdown, smoke appears and the sim is unplayable from the cockpit because of the framerate drop. Have to switch to external view. Same on all effects, details or resolution settings.
* AI of wingmen is sometimes suicidal.
* sometimes sound of Hurricane engine changes its sound or how to say that from full power to something like 30% of power. All gauges looked ok and it has good energy during 30 minutes flight, so I think it wasnt because of engine damage. Not sure on this one.
* sometimes shadows flickering. Very rare.
* some objects levitates in air when put in Mission Builder.
Cant remember other things right now. About other things concerning physics, engines modelling etc.....donw know anything about it, so dont know if it works fine.

))
A little update:
* after spending many hours in multiplayer on ATAG server, game Launcher often crashes, which is very unfortunate.
Thanks
Zat - Czech Republic