I couldn't find anything in TacOps specifying how a Command Console Cockpit (and more importantly, the second pilot riding in it) alters the BV of a unit. Based on similar situations elsewhere in the book, I think it's likely that the BV would receive the greatest skill mod of either pilot. (If Pilot A has a skill rating of 2/5 while Pilot B has a skill rating of 3/3, then the overall skill mod to the be based on a skill rating of 2/3). It makes sense, since only one pilot can be in control at a time. The other possibility that I could foresee, but would think the BV cost far too great for the potential benefits, is that both pilots apply their skill mods to the BV of the overall unit.
I'm pretty sure it should be the first option, but an official ruling would be nice. Thanks in advance.