The main focus of Ferrety's ROTWK Mod is basebuilding and defense. Due to the upgrades to each factions infantry and siege units you will now have to focus on tactically placing your defenses and units in order to turn the tide of battle. All walls and towers have had massive upgrades as well as the fortress. All teams can now build walls, with Angmar and Goblins able to build defenses on the wall itself. Mordor and Isengard have been compensated with a lower cost and buildtime of there sentry towers which if carefully placed can be just as effective.
Another focus was on bigger movie-like battles. Each squad now comes with a larger amount of units which along with a slightly higher population cap definitely brings that 'war' feeling to the battleground.
I hope you enjoy the mod!