Hi folks!!
I am finally back on this monster... I re-arranged the relationships in the form. I then tried to just hook up the very last table fields with the list - just to get it working - and it is failing...
I have attached the revised form. Here is the other information I think you will need.
LevelTwoMapping.xml
<my:myFields xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:my="http://schemas.microsoft.com/office/infopath/2003/myXSD/2007-11-27T15:29:00" xmlns:xd="http://schemas.microsoft.com/office/infopath/2003" xml:lang="en-us">
<my:Mappings>
<my:IsRepeating>true</my:IsRepeating>
<my:RepeatingGroup>my:myFields/my:grpEmployeeInfo/my:grpEmployee/my:grpProjectItems/my:grpLevelOneItems/my:tblLevelOneItems/my:grpLevelTwoItems/my:tblLevelTwoItems</my:RepeatingGroup>
<my:Mapping>
<my:FormField>my:LevelTwoItem</my:FormField>
<my:SharePointColumn>Body</my:SharePointColumn>
</my:Mapping>
<my:Mapping>
<my:FormField>my:LevelTwoResp</my:FormField>
<my:SharePointColumn>Sub_x0020_Task_x0020_Assign</my:SharePointColumn>
</my:Mapping>
<my:Mapping>
<my:FormField>my:LevelTwoPriority</my:FormField>
<my:SharePointColumn>Sub_x0020_Task_x0020_Priority</my:SharePointColumn>
</my:Mapping>
<my:Mapping>
<my:FormField>my:LevelTwoStatus</my:FormField>
<my:SharePointColumn>Sub_x0020_Task_x0020_Status</my:SharePointColumn>
</my:Mapping>
<my:Mapping>
<my:FormField>my:LevelTwoDueDate</my:FormField>
<my:SharePointColumn>Sub_x0020_Task_x0020_Due</my:SharePointColumn>
</my:Mapping>
<my:Mapping>
<my:FormField>my:LevelTwoPercentComplete</my:FormField>
<my:SharePointColumn>Sub_x0020_Task_x0020__x0025_</my:SharePointColumn>
</my:Mapping>
</my:Mappings>
<my:SharePointListURL>http://fulcoforms.co.fulton.ga.us/cff/Project</my:SharePointListURL>
<my:ListCollection>{087BC6F8-C28C-424A-BC0F-9C6FD1A5CB80}</my:ListCollection>
<my:FullListURL>http://fulcoforms.co.fulton.ga.us/cff/Project/Lists/Project</my:FullListURL>
<Batch OnError="Continue">
<Method ID="New" Cmd="New">
<Field Name="Body">
</Field>
<Field Name="Sub_x0020_Task_x0020_Assign">
</Field>
<Field Name="Sub_x0020_Task_x0020_Priority">
</Field>
<Field Name="Sub_x0020_Task_x0020_Status">
</Field>
<Field Name="Sub_x0020_Task_x0020_Due">
</Field>
<Field Name="Sub_x0020_Task_x0020__x0025_">
</Field>
</Method>
</Batch>
</my:myFields>
ERROR: