SCCM 2012 Computer Name during Task Sequence

Hello, I am having an issue with the Computer Nameing in SCCM 2012. 

First off let me tell you how we name our computers, we a location code-type-assetatg methode. SO an asset tag would look like this. XX-D-A00xxxxx

So in order to go this info into SCCM we import the computer information with the name and mac address. We then have a collection that that uses a querry to find these computers, and finally we deploy a task sequence to that collection.

Now the Task Sequence runs fine but it gives the Computer a default computer name MN........ Now in SCCM 2007 this worked properly it would give the computer the name that it was assigned in SCCM.

Any ideas on what I need to do to get this working?