Even if Wei Wenzhong wanted him dead, he likely wouldn't order him to lead his troops into an ambush. If anything happened to him under those circumstances, Wei Wenzhong would certainly be unable to escape the blame.
Wei Wenzhong was a cunning man. If he truly wanted to achieve that goal, he wouldn't issue a direct order. At most, he would set a trap, leaving Yun Zheng to choose to set the ambush himself. That way, if something went wrong, it would be Yun Zheng acting on his own initiative, and it would have nothing to do with Wei Wenzhong.
As for what was really happening, he had no way of knowing for now. He would have to wait and see what Beihuan and Wei Wenzhong did next before he could make any judgments.
Chapter 99