Help needed for rigging models

[Eren20Kruger00]

Hello, I need help about rigging models.
I recently got some Dead Space models that I want to rig on Amnesia monsters skeletons, but since in Blender animations from Amnesia can't be exported from what I know. I need suggestions about if there is a way or other programs to use to get rigs work properly, expecially for exporting. I know that there is maya, but I prefer to see if there is another possibility first.
If someone want, I can send the models to rig along with the Amnesia monsters models and animations files and then you can send me the rigged and setted(just the basic to get it work) model.