Forum adverts like this one are shown to any user who is not logged in. Join us by filling out a tiny 3 field form and you will get your own, free, dakka user account which gives a good range of benefits to you: No adverts like this in the forums anymore. Times and dates in your local timezone. Full tracking of what you have read so you can skip to your first unread post, easily see what has changed since you last logged in, and easily see what is new at a glance. Email notifications for threads you want to watch closely. Being a part of the oldest wargaming community on the net. If you are already a member then feel free to login now.

I don't actually own the rule book yet, all I have are the Battle Primer. But I used to play back in 3rd ed.

When I was reading the I noticed something - It seems like in the Assault Phase you only get to swing when it is YOUR turn. If your opponent assaults you, he swings at you but you don't get to swing back. Instead you get Overwatch hitting on 6s.

Am I understanding this correctly?

Also, how do Flamers work in Overwatch?

No, you get to swing back as well. Flamers auto-hit in Overwatch just like they do in normal shooting, just remember that you can't Overwatch with them if the enemy is charging from outside the flamer's max range.

From the Battle Primer (https://www.games-workshop.com/resources/PDF/40k/warhammer_40000_en.pdf):

1. Choose Unit to Fight With

Any unit that charged or has models within 1" of an enemy unit can be chosen to fight in the Fight phase. This includes all units, not just those controlled by the player whose turn it is. All units that charged this turn fight first. The player whose turn it is picks the order in which these units fight. After all charging units have fought, the players alternate choosing eligible units to fight with (starting with the player whose turn it is) until all eligible units on both sides have fought once each. No unit can be selected to fight more than once in each Fight phase. If one player runs out of eligible units, the other player completes all of their remaining fights, one unit after another.