Mission does not work
 

the search, remove a cancer (title translated from Spanish, not English if written well).
It does not work.
Upon entering the mission, it gives you 7 options to select (which is very rare).
You choose one and sends you to a battlefield.
in the field a small army.
same as when you make a camp to plunder.
There is no fortress to attack, or mission.
You can not complete.
It is a mission of men.

As an elf I have exactly the same problem I have 4 different quests exactly the same now destroy x army 1 and 2 etc..... Enter quest choose enemy army size from 1-6 then you kill them all out in a swamp or a forest kill them all but nothing happens

doesn't work for me either, also there are a few more of those when u declared war on elfs/orcs...

gets the same things up again, choose his army str and so on, when everything is killed i still can't win the senario/quest

It's the same for me, can't finish the quest remove a cancer, and i can't finish the quest In Marshes given by Sir morin, you must catch faramor and come back to speak with morin but anything happend and we can kill morin whereas he's our ally :(.

Thanks for the report guys. We`ll fix Army vs Army quests in the next patch.