Salut!
4.(H)/33 flew also artillery correction flights in addition to normal reconnaissance duties. Based at Siverskaja from May 42 to late 43 and possibly was still there early 1944 too (at least one flight recorded over Gulf of Finland then). January 1943 the unit had 1 Me 110 C-5, 6 Me 110 E-3 and 3 Me 110 F-3 in the start of the month. They lost 2 E-3 and one F-3 "Durch Feindeinwirkung" plus one E-3 "Ohne" during the month (
http://www.ww2.dk/oob/bestand/aufkl/b4ag33.html ).
In Norbert Hannig's (JG 54) book "Luftwaffe Ace Fighter" there is one story where they cover an artillery correcting Me 110 near Leningrad - most probably it was a 4.(H)/33 machine.
Kari