CRM 2011 Bulk Delete Transaction

Hi,

I am using CRM 2011 Bulk request to delete data from multiple entities through c# code.My doubt is if i execute multiple Query expression as one Bilk delete request job will it suppor Database Transaction?

For example i want delete Case and its activities if there any error in any one of entity then i want rollback the action.

will it delete the order that we supplied the Query expressions?

var bulkDeleteRequest = new BulkDeleteRequest
                {
                    JobName = "Sample Bulk Delete",
                    QuerySet = new[] { activityExp,caseExp,ContactExp},
                    StartDateTime = DateTime.Now,
                    CCRecipients = new Guid[] {}
                };

Here i want delete activityExp first ,CaseExp as second and ContactExp as Last,so if any error in any experssion then i want rollback all expressions.

so is bulk operation will fulfill my needs?

Thanks