External view of the enemy that I'm attacking

[K_Freddie]

IL2 Default settings (AFAIR)
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From your aircraft:
'F2' then repeat 'F5' until you find the poor sucker.

To view from the 'punished':
'F2' then 'Ctl+F2' until you find the aircraft, then 'F5' until you see your plane.

If your key config is different, got to the IL2 control panel and look through the key settings.
.. and final question - Are you playing this on a PC or one of those silly other toys