I think Vril is a reference to the golden rod (not my find, ) and the VR11 since you need it to shoot them into the green light at the lighthouse. The resemblance there is too close to pass up. the code just tells us that we need VR11 to get the vril...which we already know. eh.
Another thing I found interesting was that Ric asked you to get the rod, and project vril was nazi. And it seems that the rod is vril.
I'm sure there is another group oriented task after the vodka, not the ship levers since the green light seems to only appear after the vodka when done in solo. So we are definitely onto something here.
So there has to be something else in between vodka and levers...maybe even more than one extra step.
I think I made it so it is understandable, Im sick right now and it hurts my brain to try and put what Im thinking into words