[truuth]

"So given that C cannot have any other way of knowing that actually B fired first, isn't he wrong in his sense of knowledge that event A happened before event B? Accordingly, he is receiving future events before past events, which would mean that sense of future, present and, past are limited to our five senses of perception"
I don't understand why you are assuming that C concluding that event A happened before event B is wrong.The assumptions are more theoretical than there are practical.C can only see what is happening in his own scope of time and space.whatever occurs to C is true to C.But C is not correct based on A or B as the point of reference.