Eastern Front/fire in the steppe

[plloyd1010]

But, is it possible to get the FitS scenario book alone?

No. Nor Africa Orientale Italiana. Both would be good book offerings to longtime players.

To sum up - do I need to update the "can I play this scenario?" logic to equate FitS + AR == EF?

Wouldn't that be a little sticky? Pieces wise there are a lot of crossovers, but without the game, you don't have the book. FitS + AR == EF pieces & maps, plus older (perhaps not updated) AR scenarios. looks messy to me.