First off, i don't think there is a need to add the battle trolls from the hobbit, but its up to them. The difference between the two armies is that the ones from dol guldur were from the misty mountains, which were then sent to erebor. The other army we see is from Gundabad, not Angmar. So that army would pass through right along side the grey mountains.
Markhenry1
joined
This member has provided no bio about themself...