icecain02

I think it is related to the A.I. behaviour changed in beta 83500 [83390] Fixed: Most units had maximum skill, ignoring values set in the mission (http://dev-heaven.net/issues/4483) Played the mission with beta 83363, the alarm was easily triggered when I shoot one of the soldiers near the gas station. Since the mission is designed to sneakly infiltrate a highly garrisoned tank base, such A.I. response is more realistic to me.

Try previous ATI Catalyst 9.9 In my case, the later versions from 9.10 to 10.6 crash the game every time when i use m40a3 optics in the trial by fire mission. Or set the in game video memory and texture quality to "low" with your current ATI driver.

Malvinas.CDM: Try Catalyst 9.9 and the following settings in Catalyst Control Panel 1.V-Sync-->always off 2.Catalyst A.I-->Advanced or Standard in game settings: 1.textures-->normal 2.video memory-->normal

With 9.11 for my 4850 crossfire I got low FPS on the single mission "Counter Attack". FPS dropped from 25 to 5 and then totally hanged when I reach the designated city. I switched back to the previous 9.9 driver while I can get steady 25 to 30 FPS on the same setting.