Having earned two of the highest German awards of the war smart looking officer Hugo Primozic was a popular motive for the propaganda. Until today Hugo he is one of the most famous historical characters of the Sturmartillerie. His face can be found everywhere in the literature and on the internet.
Primozic proved that he was a valuable und capable soldier able to turn the tide on the battlefield. So one may wonder why such an experienced and distinguished officer never returned to the frontline - at least as a Zugführer if not Batterieführer like a lot of other highly decoratet Sturmartilleristen?
One reason is Hitler himself. He gave an order that forbade Primozic to return to the frontline. As the first Unteroffizier of the Heer who earned the Eichenlaub and personaly promoted to Leutnant by Hitler himself he obviously valued Primozic very high.
But it should also be added that Primozic's superior officers stated that his qualities as a personality and soldier where very good - but "only" average as an officer. Risking the loss of an Eichenlaubträger and a showpiece of the Sturmartillerie as an „ordinary“ Zugführer seemed not like an option. So Primociz had to follow the order to stay away from the front like other highly decorated men.
Primozic was probably not happy beeing bound to the „Heimatkriegsgebiet“ but nevertheless fullfilled his duty. It turned out he was not only formidable in combat but also skilled as an instructor. For more than two years he trained young recruits as Sturmartilleristen sharing his wisdom and experiences as an eastern front veteran. His fellow officers and subordinates liked and appreciated him as a very friendly and modest comrade.
In these two years while working with subordinates Primozic's must have developed his personality as an officer. His last assessment from February 1945 stated that he was unrestricted qualified ("uneingeschränkt geeignet") as Batterieführer.
Primozic’s incomplete personal file contains correspondence from March 1945 concerning his last rank. Several superior authorities and finally the Inspekteur der Artillerie supported Primozic’s preferentially promotion („vorzugsweise Beförderung“) to Oberleutnant. Sadly the file ends at this point. Probably due to the chaos of the Endkampf papers got lost and never reached the personal file. It is possible if not likely that in the last days of the war Hugo Primozic was promoted to Oberleutnant but he never received word and any proof got lost.

Source: Christian Bauermeister