This preview is entirely full of optional combat rules. I glossed over it in search of anything that would not be immediately excluded from Catalyst's own mass play campaign and, failing to find anything, didn't bother to read it. My regular game chose to return to Shadowrun 4A after 4 months of playing 5th edition, so my only contact with SR5 is through Shadowrun Missions. I do still intend to purchase the PDF of Run and Gun when it is released, though Catalyst's abysmal record of quality control and incorporating proofreader feedback means I am no longer among the crowd who purchase every Shadowrun product as soon as it is announced as being on sale.