Hey Kenny! 
First off sorry for not replying to your PM yet, its been a bit of a busy weekend.
I think I can answer your questions here though. I think is using the Animations already inside UE4 with a Skeleton that he Exported from UE4 too Blender and then back into UE4 with a custom, Make Human, mesh skinned to it.
Skeletal Meshes can be exported from UE4 as FBX by Right clicking on the Skeletal Mesh Asset in the content browser and from the drop down menu choosing “Export.” The FBX can then be imported into Blender and it includes a Mesh and a Skeleton. But in order for it to have skeleton you need the very latest version of Blender (2.71.5), which features an updated FBX import and export script. You can get the latest version of Blender here: https://builder.blender.org/download/
However, although I can get the Skeletal Meshes for example the Shoorter Game HeroTPP our of UE4 and into Blender and back again, I have not been able to get the animations working in Blender. But to be honest you don’t need the Anims in Blender, you only need those inside UE4.
More info on Exported UE4 Skeletal Meshes -> Blender coming Soon!