How much of a running sim is the game? How long to get to action when you spawn in?

Usually one of your squad members is close to the action and you can spawn on them. If not, you’ll likely run for less than a minute to find enemies. It doesn’t take long to find out where they are, maps aren’t too big or empty that you rarely find players unlike something like Battlefield 1.

What is the average game length like?

20-30 minutes I would say.