[Andy F-P]

Hello,
I wonder if anyone would know the Staffelkapitaen of 5/Stg77 on 2nd June 1942? I would be very grateful if someone could provide me with this information.
I am researching the career of a Bordfunker called Unteroffizier Hans Bottenenberg 5/StG77 who was lost over Sevastopol on 2nd June 1942. If anyone has any information as to his loss and who was his pilot on this flight, I would be even more grateful!
Thank-you and regards,
Andy