This is a model of an arm cannon that I made. This model has available materials for both internal and cycles, the respectful materials have no letter after their name, or a C. It has an action for opening up and loading, I did not put it into an NLA strip. Particle systems used are not for final products and should probably be revised if you wish to use them. I would recommend making better objects for the lightning bolts and fixing the force field for the laser ball.
I hope you guys enjoy this piece of work. :)
https://www.youtube.com/watch?v=NDrgYWL31lM
Also, for the action constraint bone, I would recommend moving the bone 10 units in 180 frames at 24 fps to get about the same speed as shown in the video. I added this bone to make animation much easier and more organized.
No drivers, I have a main bone that has an action constraint on it. The arm pieces are animated.
This is so cool man!! i'am already use it in my project as arm canon for my real action fight!! Thankyou so much!!
Please let me know if you have any questions and I would be happy to answer them. :)