[Ishmael]

@ ishmael:

Look into the DGEN folder of IL2 if there are some more files called "campaignsDeX" like


campaignsDeX_Ru.dat
campaignsDeX_Fr.dat
campaignsDeX_Hu.dat
campaignsDeX_Pl.dat

or others; if so delete them all and install the campaign once again.

That apparantly did the trick. Much thanks and a tip of the Hatlo hat to you.