Before revision: In this paper, we propose actor-critic approaches by introducing an actor policy on QMIX 9 , which can remove the monotonicity constraint of QMIX and implement a non-monotonic value function factorization for  joint action-value .
After revision: In this paper, we propose actor-critic approaches by introducing an actor policy on QMIX method called NQMIX. NQMIX introduces an off-policy policy gradient on QMIX and modify its network architecture , which can remove the monotonicity constraint of QMIX and implement a non-monotonic value function factorization for joint action-value .