Aurvendils forces are not as good indeed, but still they reached about 19K CS with 2K men.
Yes there indeed 2k men from Aurvendil.
Which is still extremely puzzling.
In game everyone is almost certain that in secret it's the moot whos funding this, because they can't explain it other wise.
also just for the battle they also upgraded there stronghold to a fortress...
Battle report:
ID=170925 Hash=e98d060985962c5a