a) You go and fight for the windmill and control of it, always.
b) You never ever go to the rock below before you have won the windmill area.
c) You never ever go halfway up the hill and wait to die.
d) You just always go to the windmill and try to win that spot, always.
If you intend to do b or c, you don’t go hill at all, and the usefulness of either is similar to drowning your tank at start of the battle.