SHV Development Questions

[scrapser]

I have these questions which were buried in another thread so I am making this a new thread in hopes of getting some answers and discussion going.

I would like to ask Dan (or Ubisoft developers) a few simple, direct questions.

Why is it with each new SH release there is no evidence of building on the previous release and improving it?

I don't mean cloning SH3 into SH4 (which is obvious what was done there). SHV is about Uboats. Why not polish the SH3 code and give it what everyone asked for after it was first released or modded the h*ll out of it to include and call that SHV? You would have had much of the program already completed right at the start, so all the new budget money could be spent making it a much improved, more accurate, full war campaign simulation with all submarines available with very few bugs!?

The interactive interior in SHV is a component of the overall program. Did implementing that force you to cut back on the rest of the simulation? Are the answers to these questions trade secrets? Do I oversimplify the sim development environment?

I'm simply curious why something so obvious goes undiscussed all the time.

Think of what I'm asking in this way. Ships, planes, and cars are released in generations. Each generation is an improved version of its predecessor. Why can't this happen with simulation software?