This map is kinda the same as your normal Helm's Deep, but with some extra uruk-hai and such.
The intended way to play is with 2 human players inside Helm's Deep with 3 Isengard AI attacking, but it can be done however you like, such as defending the Deeping Wall alone and not worry about some pesky uruk-hai breaking down the rear gate, or you can bring in friends and fight over Helm's Deep in a pure PvP setting. The only thing that won't work well is if you try to have AI defend the fortress whilst you attack. They don't really know how to do that.
The map works well in both Age of the Ring 5.x, as well as Edain 4.5.x, so if you want the AI to not be Isengard, but rather be Lothlorien or Dol Guldur, go right ahead, but the map is mainly made and balanced in vanilla 2.01. For further balancing you might need to use handicaps.
The map has both a "hard" and a "nightmare" mode, both imposing different changes to the map, and they can stack into a "hard nightmare" mode, so to speak. There are also an easteregg in the map, with plans for more.
For those who have not used custom maps for BFME before, here are installation instructions for custom maps:
1. Search for "%appdata%" in your search bar, without the quotation marks obviously
2. Find the folder "My The Lord of the Rings, The Rise of the Witch-king Files" (might go by a different name if you don't have it installed in English)
3. Drop the map folder from the .zip into the "maps" folder
4. Launch the game and enjoy the map
Any suggestions, feedback or similar is always welcomed, and if you wish to further tweak the map, go right ahead, just please credit me for the original map.
This contains both my own "cinematic camera angle" (view out from within Helm's Deep) version along with a "default camera angle" (vanilla, look towards Helm's Deep) version.
Latest update: 07/12-20 - Some slight updating on visuals. Map is a bit brighter, because in AotR it got too dark during the rain. Also added the first proper easteregg. Have fun finding it without cheating.