The supply of the He 162 was difficult. A few examples began to trickle through to Parchim from the factories to 1., 2. and 3. "Staffel". II. "Gruppe" was still without the type by the first week of April 1945. On 11 April II. "Gruppe" transferred to Warnemünde to begin training. I. "Gruppe" had worked its way up to 13-16 aircraft at this time, 10-12 were operational. Its 40 pilots was in contrast to II. "Gruppe" which had only 19 with no He 162s. I. "Gruppe" was making approximately ten flights per day. It is thought that JG 1 had 45 He 162s on strength by 1 May 1945 at Leck, though it lacked equipment. Combat operations were few as the Western Allied invasion of Germany collapsed the Western Front and the imminent Battle of Berlin brought the war to an end. Of JG 1's pilots, among the most successful on the He 162 was "Feldwebel" Friedrich Enderle, who was killed when his He 162 crashed an exploded on take-off. Enderle had three B-17s to his credit. "Oberleutnant" Emil Demuth led his "gruppe" on a retreat to Leck by the Danish border in an attempt to keep it from the British 21st Army Group for as long as possible and to begin operations. On 20 April, with the Battle in Berlin raging, "Luftwaffenkommando Reich" [supplanted Luftflotte Reich] ordered I. and II./JG 1 to operate in the north with III./JG 301 and its Focke-Wulf Ta 152 "staffeln" in the north of Germany. I. "Gruppe" continued some form of training, while II./JG 1 was told to expect the delivery of 10 He 162s in late April. Ten II. "Gruppe" pilots arrived at the Rostock factory on 23 April and were told that only one He 162 was to be produced per day. Nevertheless, II. "Gruppe" moved to Leck on 28 April in a formation of eight to 10 while other pilots travelled by road. "Leutnant" Hans Rechenberger became one of the few pilots shot down in aerial combat. He survived the encounter with a Spitfire on 30 April.