End goal is the Submisison.
Starting Position: Top or Bottom
Top --
1. Pass (Half, Open or Closed Guards) to Side Control or Sub (Leg locks / chokes)
2. From Side Control ... Sub or Mount or take Back
3. Mount / Back ... Sub or lose Position ... back to Step 1 or 2.
Bottom --
1. Prevent Pass / Sweep to come up on Top (see above for Top options)
2. Sub from Bottom (Half, Closed or Open Guards)
That's it.
the Big Picture. Everything else is details / micro goals on way to achieving the 5 points above.