This is from Luther's Soviet fighter tactics in 1942
http://luthier.stormloader.com/SFTacticsIII.htm ..........The following information about German tactics is derived from experience of our pilots that fought the FW-190.
Enemy mostly stays in obsolete formations when flying, i.e. closely spaced pairs, etc.
Germans will position their fighters at different altitudes, especially when expecting to encounter our fighters. FW-190 will fly at 1,500-2,500 meters and Me-109G at 3,500-4,000 meters. They interact in the following manner:
FW-190 will attempt to close with our fighters hoping to get behind them and attack suddenly.
If that maneuver is unsuccessful they will even attack head-on relying on their superb firepower . This will also break up our battle formations to allow Me-109Gs to attack our fighters as well. Me-109G will usually perform boom-n-zoom attacks using superior airspeed after their dive.
FW-190 will commit to the fight even if our battle formation is not broken, preferring left turning fights. There has been cases of such turning fights lasting quite a long time, with multiple planes from both sides involved in each engagement. .....