i was caught out by the zone 6 camps (at the bottom of the sector) whilst attacking zone 3, so beware.
very frustrating but at least i know now why my general took a detour (the retreat button didnt work tho, even after frantic button pushing when i realised what was happening lol)
have noticed that the medium camps (bottom zone 6) appear to be in the same position as the original poster stated, so the target areas of these 2 camps must have increased