110C's in the Battle of Britain scenario are quite good if they are flown to their strengths, which is not escort flying along 200 yards from the bombers at the same speed as the bombers. If they hang out way over the top of the bombers and use their speed to get in on attackers and climb to get back up to their perch, they can be quite dangerous. I wonder if their performance in the real Battle of Britain had to do with how they were used.
So far as I have read, no. The Bf110s did very poorly even before Goering issued the close escort order. The problem with being above like you describe relies on no Spitfires or Hurricanes showing up near, or above, your altitude.
Anecdotal, but Bob Doe, who considered himself the worst pilot in his squadron and was sure he was going to die on his first combat sortie, shot two Bf110s down on that first combat sortie, including the one that dove on his Spitfire.
PR3D4TOR,
When somebody uses the kills claimed vs 110s lost as evidence of how good they were, the veracity of those claims becomes important.
The fact is, deny it though you may, the Bf110 was not a match for the Spitfire or Hurricane. It was not a match for the D.520 either. It did well until it met fighters that were as modern as it was, then it did poorly.