The upgraded Undead Mainbase still can not build workers. There's also the matter of the use of German in your map, but it appears you are already on that issue.
I will give you a short review of the playability of your creation:
Empire At War is your typical kingdom builder style map, where you start with a unit that will build the main building of the race of your choice and you build up from there. However, this map is very different and unique to other maps of the style. Unfortunately, this is not for the better.
As most maps of this style have a basic trigger to eliminate the starting 'worker unit' used to choose your races while the rest take advantage of the Night Elf Worker building Ancients system, this map takes advantage of neither, falling short of the most basic requirement. A lack of originality in terms of the races is also a downfall to this map mod, as it uses the original four races, yet contains less content than the original melee game.
The hero idea was very nice, as it proves that you don't need to gain experience to be a 'hero' unit. There is not much room to improve on this part, as it is well done enough for the small amount of content the map actually has.
Unfortunately, in this battle of good vs evil, it appears the bad points heavily outweigh the good ones. With a certain lack of originality put into a map riddled with bugs and German, this map is poorly done and violates THW's rules.
I vote for Rejection until the map is in pure English. Then I will give it a vote of 2/5.
~Wazzz out