Anyone played 10e? Any tips for your first games/rules you mixed up?

Got a game lined up this week, and as a player with advanced whateditionisthisanymoreitis (contracted from starting in 3e and then being talked into trying 2e after that) I know that I’m prone to confusing rules across editions. Figure a bit of prep around the most likely mistakes might help my first game be a bit smoother.

#Warhammer40K