Realistic sight for the P-39, edited by Sovietmann addon - IL-2 Sturmovik: 1946

L-2 Sturmovik (Ил-2 Штурмовик) is a WWII combat flight simulator video game, focused on the air battles of the Eastern Front. It is named after the Soviet Ilyushin Il-2 ground-attack fighter, which played a prominent role in this theatre and is the single most produced military aircraft design to date. Along with its sequels, IL-2 Sturmovik is considered one of the leading World War II flight simulators.