Both on Begginer and Experienced, all Culth Apprehension missions feature only a single enemy, right?
I was thinking that maybe you could boost that number a little bit, since single-target missions are more boring than they are easy, as you know never to expect any surprise, and honestly give too different portrayals of cult cell squads between difficulties (single-man subcells at Experienced and below and 2-5 man subcells above).
I don't remember the numbers for Veteran, but assuming they are 2-4, maybe you could up the begginer number to 1-2 or 1-3 and the Experienced one to 1-3 or 2-3? Still pretty easy, but it gives space for surprises.