The earlier statements on #2 are incorrect.
Correction on #2 -
See Note 3 from the TEC: "Wheeled and Track Units may leave Column with in a Town hex but may not then move without returning to Column mode."
So move into the Town while in Column, get out of column, remove the mine, get into Column and leave the town is permissible. Would take you a few activations to do so.
This is not true for City hexes though.
On #3 - Find the "no Company Bonus" rule for Op Fire un 17.6 #4 in the v2.0 Rules of Play.
It hits a perfect balance between complexity and telling a story. Plus the scale helps associate your stories with real places!
This is why I love it too.