Hm.. Which parts of the theory are not clear to you?
The concept is really quite simple:
- you change your orbital plane, so that you pass your landing site in the current or next orbital passing
- once you reach the proper distance (this is hard to judge - but there is an older thread on reentry also on this
forum) you burn retrograde and reenter
You have a few modes with BaseSync, but I guess the most intuitive to use is the Closest Passage. Possibly periapsis
mode, since your periapsis is near or over the landing site too..
Tell me what's buggin' you

Cheers,