Like the MDT 2013 Lite Touch post from yesterday, here is the same info but for ConfigMgr 2012 R2. In this post you find step-by-step guidance on how to deploy the Windows 10 Enterprise x64 build 9926, including driver injection support, with ConfigMgr 2012 R2 (integrated with MDT 2013 of course).
First, this is not supported so don't blame me if something is not working.
Second, to make ConfigMgr 2012 R2 (integrated with MDT 2013) work with Windows 10 build 9226 image, including driver injection, you need to make sure WinPE 5.0 is updated with the new dism.exe and sub-components required to do offline servicing (otherwise driver injection fails). The trick is to simply have the the task sequence copy the right servicing stack to the WinPE 5.0 boot image, when deploying Windows 10 operating systems.
On your file share you use for your MDT 2013 package source files, copy the dism.exe and DISM folder from the Windows 10 build 9926 boot.wim file to MDT 2013 package, in my case CM01SourcesMDTMDT 2013Toolsx64. The dism.exe file and DISM folder are found in the X:WindowsSystem32 on your boot image (once booted), or E:MountWindowsSystem32 if you just mounted the boot.wim.
After copying the files, add two run command line actions to your Windows Technical Preview task sequence (and only this task sequence).
Copy WTP dism.exe
cmd /c copy %deployroot%\tools\%architecture%\dism.exe x:\windows\system32 /y
Copy WTP DISM subsystem
cmd /c copy %deployroot%\tools\%architecture%\dism* x:\windows\system32dism /y
Driver injection is now successful for Windows Technical Preview deployments
Here is the resulting deployment, with the ConfigMgr 2012 R2 CU3 client installed.