TLDR
Two groups fighting each other
Eight battlefields each with its special rules, and main and secondary objectives
System for a continuous battle / war - you will get reinforcements during the event to make up for the fallen units
New resources with which you will have brand new options - do you want to get more cover? Check. Do you want that building blocking your LoS demolished? Check ...
Note - the Novemeber Rules Pack has been taken down for maintenance and upgrading :)