Actaully you cold probably redo the Akula panel to have a BB display. I remember when SCX was about and SCU someone did a new fire control station for an Alfa i think and it only had the 4 tubes you'd get. OK maybe not an Alfa but some Russian sub.
So if you have the time and the energy open up the 688i BB Sonar bitmaps, work out the positions, Russify it and then rename it. You'd then have to copy a bunch of other files too but it could be done.
Thing is you can't get a red water fall. Not with 688 anyway. Only with Seawolf and I think even if you redid the seawolf one and mixed and matched you might not get the buttons right.
Bascially it can be done and I don't think it would be breaking the EULA as it is a copy and paste exercise where files are concerned.
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