In my sources, it was a P-38 that Schuck claimed this day:
The 30th TRS of the 67th TRG suffered a heavy loss on 7 April when two pilots, Capt. William H. Heily (making his first mission of his second tour of duty) and 1st Lt. Stephen L. Pascal, failed to return from an operational mission. At the time, no details could be gathered concerning the loss.
On 16 April, Capt. William H. Heily walked into the 30th Operations room and he had not sprouted wings. The captain was shot down by an Me 262. He was covering a strip of the autobahn and was over Seesen when he was attacked by two Me 262s. One came from above and straight on and went by as pilot turned into him. The other, unseen, turned sharply in and fired. The captain rolled the ship over on its back and found both engines smoking and his instruments out. The plane was losing altitude fast so the pilot decided to leave the ship. He had hardly pulled the rip cord before he heard rifle fire and found himself on the ground. Captain Heily believes he must have been at 250- or 300-ft when he bailed out. With a badly bruised ankle, he was unable to hide before being picked up by a Volksturm unit. His interrogator threatened to turn him over to civilians unless he answered all questions. However, the captain refused to give any information. For the next seven days, along with about 60 other POWs he was forced to walk 40 kilometers a day - without food. One night, as American artillery was murdering a town in which he was spending the night, he was allowed to go into a basement. A German colonel entered the room and, upon seeing an American there, he struck him across the face cursing as he did, "God Damn Yankees."
On the 7th day, still trying to dodge the fast forging 9th Army, Capt. Heily was taken to a prison camp where there were about five other Americans and 20 Russians. Many of the German guards had deserted with the approach of the Americans, and an American Sgt. had things almost in hand. With the arrival of Capt. Heily he handed control over to him. The captain disarmed the SS guard and within 45 minutes, the Infantry walked in and the captain was a free man again. He was directed to 7th Army Headquarters where he was ushered into an ambulance and sent back. However, upon recognizing Eschwege as the new home of the 67th Group, Captain Heily quit the meat wagon and rejoined his outfit. The happy ending to the tale is that the captain was sent home ten days later complete with luger and bayonet.
One of the two Me 262 that attacked the two reconnaissance pilots was flown by Oblt Walter Schuck, the Staffelkapitän of 3./JG 7, who claimed this day a P-38 shot down in Seesen area. It was his 202nd victory!!
Source :
http://findarticles.com/p/articles/mi_qa3901/is_200306/ai_n9273365/pg_9?tag=artBody;col1
http://findarticles.com/p/articles/mi_qa3901/is_200306/ai_n9273365/pg_12?tag=artBody;col1
http://www.luftwaffe.cz/04-1945.pdf
http://www.cieldegloire.com/jg_007.php