Boboke came to the battlefield not because he was forced to.
In fact, it was the "suggestion" given to him by the Wise Wolf in a previous conversation. If Boboke didn't want to suffer another disgraceful defeat and wanted to protect his already precarious clan, he had to do this!
But it seemed Boboke really had some "dirty stuff" on him.
He sneaked onto the battlefield intending to track the whereabouts of Hurley the Grand Marshal, only to witness the collapse of the wolf people under the command of the Military Governor. The sight of the meteor rolling in almost scared him to death.
Before he could adjust himself, Murphy, who was "casting skills" on the battlefield, charged right at him with the Necessary Evil.
He almost died!
Boboke watched Murphy, turned away with that damned demon sword that killed several wolf people around him in an instant. He weakly slumped to the ground, feeling a shameful urge to urinate as a warrior of the wolf people.