The map is pretty good, but after loading up an already started Skirmish save-file, I encountered a bad bug: it was like there were invisible obstacles in the path from getting to the last door before exiting Rivendell and here and there all around the city.
So... it was impossible for the units to freely move around, or to get outside the city.
Same for the enemy: he wasn't able to get inside from the main gate.
Lastly, Elrond is invisible, at least in my map.
It's pretty hard for me to give the idea of the first bug with screenshots, so I hope you'll sort out the problem.
PATH BUG (You can see how the map is not letting me move the selected units where the other units are.)
ELROND BUG