BF-109 G10/U4

[Motherland]

Only the Bf 109 F-4/R7 variant had the MG 151/15mm Gondolas.   Dunno what variant we have in the game, but it should be easy to add.

/R7 refers to the Rustsaetz kit... such as, a Bf 109G-6 w/ MG151/20 gondolas was often in games as a Bf 109G-6/R6. Rustsaetz 6 was the gondola kit for the Gustav series.
Also, according to Prien & Rodeike's book, it was R1, not R7.
Semantics though

[Masherbrum]

/R7 refers to the Rustsaetz kit... such as, a Bf 109G-6 w/ MG151/20 gondolas was often in games as a Bf 109G-6/R6. Rustsaetz 6 was the gondola kit for the Gustav series.
Also, according to Prien & Rodeike's book, it was R1, not R7.
Semantics though

The F-4/R1 was a Fighter-Bomber with an ETC 500/IXb Bomb Rack.  
The F-4/R2 was a Fighter-Bomber with an ETC 50/VIIId Bomb Rack.
The F-4/R3 was an Extended Range Fighter with one 300 Litre Drop Tank.
The F-4/R4 was a Fighter-Bomber Rosttrager 4 x 24 SD 2/XII rack for Anti-Personnel bombs.
The F-4/R7 was what I previously said it was.   It did not have the 20mm Gondolas.   It had 15mm Gondolas.    

This is the Standard "Rustzustand" (R) load out for the F series.  No semantics at all.