The first step to dealing with a threat is to always assess its strength, ability to interact with others, their general influence, their ability to adapt, their history and how they react to certain responses.
Thanks to the bears, they have learned their general influence and history quite well. However, in regards to their strength, the orcs seemed to rely on numbers and the mass production of their equipment.
Their individual strength and capabilities, however, seemed to be just around the soldiers and guards that Nasiah fought back in Nahar.
However, they're a lot less organized and have a lot less clear strategy or tactics that don't come from their equipment.
They seemed to be much more comfortable and intelligent when it came to handling objects such as their siege weapons.
The orcs would bombard those from afar and then rush in with small groups to throw flares that would signal where to fire next.