Gothic II/Khorinis (Chapter 4)

Hordes of Orc Elite Warriors
To begin, talk to Lord Hagen. He will not believe you, so talk to Ignaraz. He will tell you that there are some Orcs near Lobart's Farm. Kill them (if you want) then you have to find the Colonel Orc. To find him, go through the woods near Lobart's Farm, search for a cave near the castle and there will be some Orcs and the Colonel. Lord Hagen still won't believe you, you have to do something more.