Could it be possible to build a helmet that has some sort of recorder in between the eyes? It would be difficult to make but recording battles would be much easier and the "director" could play too. I don't know if someone or some company already made something like this, but how much do you think it would cost to get something like this or maybe make on your own?
Also, if it has already been done, could someone post me a link or something, because I want to see it.