Help with infiltrator Retarget

Okay I am wondering if any one can help me with the re-targeting of the infiltrator model and the mannequin model? I am using the latest version of UE4. I followed this tutorial: Unreal Engine 4 Infiltrator Tutorial - Migration and Character Setup - YouTube, and I’m still having troubles. Its as if I can’t get the arms to sit properly. I have tried adjusting it to the best of my abilities to get to the A position.

I have two images, one showing the pose I have him set in

and the other in the idle animation for the Third person mannequin

Any help would be wonderful. Plus, is this the best form when working with the other animations from the store? Cause if I should re target to a different model then I would! rather do that. Thank you!!