To used this avatars in 3D software as obj or fbx , you must change it in 3DXchange (calibration)
for next step.
Lets try George Foreman vs Mike Tyson for test 01
(https://img15.hostingpics.net/pics/501478FormanvsTyson07.png) (https://www.hostingpics.net/viewer.php?id=501478FormanvsTyson07.png)
(https://img15.hostingpics.net/pics/213313FormanvsTyson08.png) (https://www.hostingpics.net/viewer.php?id=213313FormanvsTyson08.png)
(https://img15.hostingpics.net/pics/599445FormanvsTyson09.png) (https://www.hostingpics.net/viewer.php?id=599445FormanvsTyson09.png)
(https://img15.hostingpics.net/pics/143016FormanvsTyson10.png) (https://www.hostingpics.net/viewer.php?id=143016FormanvsTyson10.png)
(https://img15.hostingpics.net/pics/182500FormanvsTyson11.png) (https://www.hostingpics.net/viewer.php?id=182500FormanvsTyson11.png)
(https://img15.hostingpics.net/pics/681918FormanvsTyson12.png) (https://www.hostingpics.net/viewer.php?id=681918FormanvsTyson12.png)
(https://img15.hostingpics.net/pics/122616FormanvsTyson13.png) (https://www.hostingpics.net/viewer.php?id=122616FormanvsTyson13.png)
(https://img15.hostingpics.net/pics/793727FormanvsTyson14.png) (https://www.hostingpics.net/viewer.php?id=793727FormanvsTyson14.png)
(https://img15.hostingpics.net/pics/573405FormanvsTyson15.png) (https://www.hostingpics.net/viewer.php?id=573405FormanvsTyson15.png)
(https://img15.hostingpics.net/pics/258062FormanvsTyson16.png) (https://www.hostingpics.net/viewer.php?id=258062FormanvsTyson16.png)
import character from 3DXchange to unreal engine 4
the result
adding scene