Omert was born on 15 January 1918 in Ginolfs, present-day part of Oberelsbach, at the time in the Kingdom of Bavaria within the German Empire.

II./186 (T) initially consisted of two squadrons, 4./186 (T) equipped with the Junkers Ju 87 dive bomber,[Note 2] and 6./186 (T).

[4] World War II in Europe had begun on Friday, 1 September 1939, when German forces invaded Poland.

Following the decision by Adolf Hitler to halt work on the aircraft carrier Graf Zeppelin,[5] II./186 (T) was redesignated and became the III.

Gruppe was withdrawn from this theater of operations and relocated to Döberitz where it was tasked with fighter protection of Berlin.

[8] In November, JG 77 was ordered to the English Channel to continue fighting the Royal Air Force (RAF) in the aftermath of the Battle of Britain.

Gruppe was moved to Bucharest and was located in the sector of Heeresgruppe Süd (Army Group South).

[20] On 31 January 1943, Omert claimed two Curtiss P-40 Warhawk fighters near Kebili and El Hamma.

[21] On 4 April, Omert claimed a Supermarine Spitfire fighter shot down 10 kilometers (6.2 miles) northwest of Skhira.

[22] On 13 July, Omert was shot down and wounded in his Messerschmitt Bf 109 G-6 (Werknummer 18447—factory number) in aerial combat with Lockheed P-38 Lightning fighters resulting in an emergency landing north-northeast of Enna.

[25][26] Omert was killed in action on 24 April 1944 after attacking USAAF four engine bombers over Finta Mare, Romania.

He bailed out of his Bf 109 G-6 (Werknummer 160826) and was then shot and killed by marauding US fighter aircraft while hanging in his parachute.

Gruppe was then again given to Bresoschek, and later to Oberleutnant Erhard Niese, before Major Armin Köhler took command on 1 August 1944.