Had you a look into Makehuman http://www.makehuman.org/
Install addon inside Blender, errorfree ex/import. Export from MH with Skeleton. Easy to animate, bacause its rigged.
Look out for Makeclothes, to generate assets inside Makehuman, then they fit nearly every creature you create and you do things only one time per asset.
You even could do load some mocap *.bvh files.
Thats a very quick way to generate humanoid based creatures in perhaps 30 minutes, from creation in MH export to blender, load Mocap and export in unreal editor, blend mix swap animations…
Sure that has nothing to do with keyframing animation per hand, but for a beginner it is so easy to generate good results.
for converting original *.bvh to blender Creative Bloq | Art and Design Inspiration
some helpful stuff http://blender.freemovies.co.uk/motion-capture/
5,5 gig free mocap to play with, here is a list of easy to use mocaps https://sites.google.com/a/cgspeed.com/cgspeed/motion-capture/cmu-bvh-conversion/bvh-conversion-release---motions-list
For make clothes/hairs… (multiusable for every model you do) MakeHuman Tutorial - (Pt.4 ) Make Clothes that Fit 3D Models with Blender Addon by VscorpianC - YouTube
If you ask me, yes it is more easy to learn that, then to be stuck for long time with keyframing.
When you export such a model, you can be sure (relative ^^), that it is looking in UE like expected.
Really funny. ^^
