If, after a DB plan terminates, there is a surplus that is distributed to participants, are alternate payees under QDROs entitled to a share of the surplus?

The additional benefits are given to participants, including the participant subject to the QDRO. The terms of the QDRO determine the alternate payee's benefit, which comes only through receipt of a portion of the participant's benefit. So what does the QDRO say the alternate payee will get? Or, to be more precise, what portion of the participant's benefit does the alternate payee get? It is an interpretation of the QDRO issue, not a "what are alternate payees entitled to" issue.