[4] During his command, Oschmann created three additional fixed intercept stations, bringing the number to ten.
Due to the number of ministerial cipher bureaus that were proliferating in the defense ministry, Oschmann saw a need for a central agency, independent from the Abwehr, that would collect and decipher operational intelligence and pushed for the new agency and achieve independence from the German Defense Ministry, which eventually came about.
This new agency was called the Intercept Control Station (HLS) (German: Horchleitstelle) and was created sometime in 1933/34.
[1] On 1 October 1919, he joined the Army Signals Intelligence School (German: Nachrichtenschule).
On 1 February 1931 he was then transferred to the Reichswehrministerium where he was employed in the departure office (Abw) until 1934, when he was promoted to major.
On 1 June 1936, he was transferred to the Army Intelligence School (German: Nachrichtenschule des Heeres) as a teacher.
On 1 April 1938, he was appointed to commander of Signals Group VII (German: Kommandeur der Nachrichtentruppe).
At the beginning of the summer of 1941, he joined in the eastern campaign to lean and attack on northern Russia by as part of Army Group North.
During Operation Bagration General Oschmann was slightly wounded during an air attack near Byerazino on 30 June 1944.