Hristo,
Did the Bf109G-6 use MW50 in 1943? I searched and searched for evidence of it but was unable to find any. The earliest that I could find for MW50 use in the Bf109G-6 was 2nd quarter 1944.
Quite honestly, that was the single biggest reason that I stopped advocating 1943 as the ideal year for global WWII simulators. The Germans just weren't adequately competitve and the Japanese were marginal. Some of the aircraft that I concluded would make it into a 1943 centered model were thinks like:
F4U-1
F6F-3
P-38J
P-51B
B-17G (early version of the G)
TBM-3
Mosquito Mk VI Series 2
Spitfire LF.Mk IX
Lancaster Mk I
La-5FN
Yak-9T
Il-2-3M
Pe-2
Bf109G-6 (no MW50)
Bf110G-2
Fw190A-5
Me410A
Ju188A-1
C.205
S.M.79-II
A6M5
Ki-44-IIb
Ki-61-Ia
N1K1-J
B6N2
G4M2
As you can see, it allows interesting aircraft like the Bf110G-2, Me410A, Mosquito Mk VI and Pe-2 to be much more competitive because the super fighters haven't arrived. It also screws the Axis in both the fighter and bomber departments, particularly the Germans in the fighter department and the Japanese in the bomber department.