re: #313 RogueOne
If we know the path they took we could know. If Z wasn’t between Martin and his destination then I think that tells us it was Martin who initiated the contact. From that point, with Zimmermans injuries and ending up on his back, it would make sense that he got hit first.
If some nitwit got out of a truck, prevented me from going home, and started harassing me when I was minding my own business, I might initiate contact as well.
Hell, you could even say I was standing my ground.