Hey Cinnik,
Having spent the last couple of years trying to achieve the same thing as you, I’d like to give you some advice.
If you’re going to use Kinect for mocap, you’ll be disappointed with the end result. Kinect v1 has no finger tracking and Kinect v2’s finger tracking is very poor. The animations are unusable for fighting games. Besides, if you only have a single Kinect sensor, you should absolutely avoid this approach.
Every software that allows capturing from Kinect including iClone, Brekel, Motionbuilder plugins etc. will give you unusable animations.
If you don’t care how good your mocap turns out, you could give it a shot, but before spending money, please look up sample videos on youtube. I am obviously no authority, but would like to give you a friendly recommendation NOT to do this.
The best thing you could do right now is wait for the Neuron mocap suits to start shipping and look at the feedback from people. Again, mocap files from Neuron would need a lot of cleanup before they can be actually used for your characters, but Neuron does seem to give some pretty good results.
If you can save up to buy that $1500 suit (i regret missing the Kickstarter), you’ll have a very convenient mocap system (which would still require manual cleaning) that you can use to animate your characters.
The next best mocap solution is probably going to cost upwards of $9000 (Vicon Bonita, Optitrack Flex, XSens MVN) and is very complicated to set up.
If you cannot afford the Neuron suit, you have two options:
(a) Use camera based markerless mocap like ipisoft or Captury (both expensive)
(b) Search for ready-made animations on the web (Motus, Kubold, Motek etc) and retarget to your rigs or
(c) Get hold of a character animator
Personally, we got tired of waiting for the Neuron system so we ended up ‘hand animating’ our characters. Animating characters this way gives a unique style to your game but might not necessarily look realistic. Besides, ‘arcadey’ motions can be very hard to capture anyway so there’s no other option but to get a character animator.
If you still insist on using the Kinect sensor, you should look at iPisoft - the tracking and cleanup is a lot better than other products.
Cheers!