Quetions from a new player

[Conquerous]

What does "Fog of war" mean?
What is the difference between:
Freestyle and Sequential (Play Order)
Escalating, Flat Rate and No cards (Bonus Cards)
Chained, Adjacent, and unlimited (Fortification)

Thank you in advance for answering my questions
Chris

[lancehoch]

Link to the instructions page describing all of those elements and more.

[Conquerous]

oh, thanks .