So you guys hit swarms for your first 2e battle...wonderful.
Some big changes from how things worked in 1e:
1) It takes an action to identify targets:
https://2e.aonprd.com/Actions.aspx?ID=26
2) You have three actions and 1 reaction. In your resource tracker if you have unlocked nonstandard actions I wrote them there. > means it takes an action, >> means it takes two actions, and ^ means reaction.
3) By default I will activate the first reaction that triggers. If you want to "save" a reaction for something special (i.e. you really want to save a shield block vs. the baddie with the greataxe) then specify that otherwise the first thing that triggers gets it.
4) Swarms work similar to 1e but there are some mechanical updates. So they are resistant (but not immune) to physical damage and weak to area of effects and they don't "attacK" but instead automatically inflict damage to a target.
5) I no longer do initiative. Everything is just in posting order.