The sensation of speed at low level is the best yet in a flight sim. I enjoyed whizzing past excellent ground textures, individual trees, small stands of trees and whole forests of trees, vast cities (Moscow alone has 500,000 buildings in the sim), flying through clouds, fog, rain and snow, and all with a smooth frame rated with no s-s-stuttering at all on the test system. All this would be an impressive achievement for a civil flight sim, to create a world in such detail and still enjoy a sedate and fluid sensation of flight. But IL-2 is a combat sim and once you add multiple aircraft manoeuvering vigorously, tanks, trucks and ships, bombers, anti-aircraft fire you would expect the sim performance to take a severe hit. Not so. Without a doubt the most outstanding World War 2 flight sim of the 2000's.