I made an interactive pve Helm's Deep map, I will gladly give anyone the awesome map just not sure if anyone is interested. How it works is you start at the deeping wall and you choose a character, then you defend the wall in phases (first comes the uruks, then comes the ladders, then comes the berserkers, then comes boom boom) and you fall back to the gate and hold it. You can also jump over the rock onto the causeway to push the uruk's back while the gate gets repaired (If you let the gate get broken down by the zambies). Finally if the gate gets destroyed a 2nd time you have to (or are encouraged to) go to the keep and then ride out after aragorn and theoden have their lil discussion. A lot of redstone and details btw is in this Helms Deep version and it was made 100% made by me. there is a resource pack with lotr sounds from the movies also.