The GAU-8 Cockpit Sound is a sound of a 30 mm seven-barrel Gatling-style autocannon firing from the A-10 Thunderbolt cockpit. Designed specifically for the anti-tank role, the Avenger delivers very powerful rounds at a high rate of fire. The Goalkeeper CIWS ship weapon system also use the GAU-8/A, which provides defense against short-range threats such as highly maneuverable missiles, aircraft, and fast maneuvering surface vessels.

The GAU-8/A is extremely accurate and can fire 4,200 rounds per minute without complications. The 30-mm shell has twice the range, half the time to target, and three times the mass of projectiles fired by guns mounted in comparable close air support aircraft.

The A-10 engines were initially susceptible to flameout when subjected to gases generated in the firing of the gun. When the GAU-8 is being fired, the smoke from the gun can make the engines stop, and this did occur during initial flight testing. Gun exhaust is essentially oxygen-free, and is certainly capable of causing flameouts of gas turbines. The A-10 engines now have a self-sustaining combustion section. When the gun is fired the igniters come on to reduce the possibility of a flameout.

The GAU-8 Cockpit sound consists of the firing start sound – [START] file, [LOOP] audio file 10 seconds long and the ending file – [END], which should be played at the end of the shooting. The Aircraft Weapons SFX Library includes 51 audio files.