Which one has longer range? I know the G4M1 climbs much better, is slightly faster and carries a smaller bombload.
I haven't tested it in detail (climbing with 100% to best alt, then determining range left). On the deck, the He 111 has 2.2 hours at ful mil and the G4M 2.1h, but considering the much better ROC and cruising speed the 100% G4M should beat a 100% He 111.
It's a different thing when the He 111 choses a small bomb load + drop tanks (endurance on deck 2.7h).
But that's mostly academical in AH, as both bombers are in my experience rarely used for long range missions.
Which 111H variant is it anyway? a H-6? Does it have any 13mm MG131 options? MG 81Z?
Seems like our 111 is a mix of different early H variants. The 'best' weapon set you can get is 20mm MG-FF in nose and forward gondola, single MG-15 in dorsal, left, right and rear gondola positions.