Used awesome Mixamo webpage, to rig and animate all famous acknex models. Got models from download page of Conitec (level8.zip), except sword model, which was downloaded from combat system tutorial (old AUM series). And all rigging and animation is done on Mixamo webpage! Check it out, it's one of the best services to rig and animate models I've seen ever! About license for using those models, check out Mixamo.. Not sure if it's allowed to be used in commercial projects, but just to toy around for personal use, I guess (hope) it won't hurt. Best regards!