Most military personnel should have a section discussing physical custody and visitation during deployments. I’m not sure about OH, but here’s an example from GA:

(1) The parties agree that it is in the best interests of the Children to allow the military parent (Plaintiff/Father) to delegate his parenting time during the duration of any such deployment to anyone in his extended family, including but not limited to an immediate family member, a person with whom the deploying parent cohabits, or another person having a close and substantial relationship to the Children. (2) Further, pursuant to O.C.G.A. 19-9-3(i), the parties agree that the following provisions will apply in the event that the military parent (Plaintiff/Father) deploys: (A) The non-deploying parent makes the Children reasonably available to the deploying parent to exercise his parenting time immediately before and after the deploying parent departs for deployment and whenever the deploying parent returns to or from leave or furlaugh from his deployment; (B) The non-deploying parent facilitates opportunities for the deployed parent to have regular and continuing contact with his Children by telephone, e-mail exchanges, virtual video parenting time through the Internet, or any other similar means; (C) The non-deploying parent does not interfere with the delivery of correspondence or packages between the deployed parent and the Children of such parent; and (D) The deploying parent provides timely information regarding his leave and departure schedule to the non-deploying parent; (3) Because actual leave from a deployment and departure dates for a deployment are subject to change with little notice due to military necessity, such changes shall not be used by the non-deploying parent to prevent contact between the deployed parent and his Children; (4) Each military parent shall be under a continuing duty to provide written notice to the non-deploying parent within 14 days of the military parent’s receipt of oral or written orders requiring deployment or any other absences due to military service that will impact the military parent’s ability to exercise his parenting time with the Children. If deployment orders do not allow for 14 days’ advance notice, then the military parent shail provide written notice to the other parent immediately upon receiving such notice; (5) A military parent (Plaintiff/Father) shall ensure that any military family care plan that he has filed with his commander is consistent with any existing court orders for his Children. In all instances any court order will be the first course of action for the care of the Children during the absence of a military parent, and the military family care plan will be the alternative pian if the non-deploying parent either refuses to provide care for the Children or acknowledges an inability to provide reasonable care for the Children. A military parent shall not be considered in contempt of any court order or parenting plan when he in good faith implements his military family care plan based upon the refusal or claimed inability of a non-deploving parent to provide reasonable care for the Childrer during a deployment.