some rules for using the BF109 k-4 (bnz-tactics ) :
1. take your time
2. be yourself
3. choose your target while bnz wisely
4. prevent climbing if there is another another enemy near u
5. no more than 90° while a bnz attack to prevent a lack of speed
6. dont waste wep, after useing it for 10min, u will loose ca.50km/h
7. aim steady
8. shoot in burst