V1 kills were counted seperately by the RAF, and didn’t count towards a pilot’s overall tally of aerial victories. The top scoring “V1 killer” appears to have been Sqn. Ldr. Joseph Berry, flying Hawker Tempests with 501 Sqn. He scored sixty-one and a half V1 kills in addition to three earlier conventional air-air victories. He was killed in action in 1944.

http://www.hawkertempest.se/berry.htm