Shit suddenly hit the fan for Arnie. Mostly because he didn't currently have his main weapon on him, and only had his side arm and knife. Seriously, who the heck carried a submachine gun on their person while riding a train?! He quickly found himself taking cover with Kai and Franziska. He grew a sick smile as he looked across to the dead laying about. However, he couldn't be distracted right now, and he returned his focus back to the fight. He fired of a few rounds when he could at their attackers.