Thanks @MisterX! I agree, I just want to understand and be able to explain the “normal” rules before tweaking things like threat. Hopefully I can be consistent at first, so when I add excess threat they’ll get a sense that things are a little more dangerous than usual.
I’m glad no one has added any other between-scene rules; I felt like every time I reread the rules I found something new. I also noticed there are things that happen at the end of a “mission” (which seems deliberately undefined) but I’m more concerned about scenes because I don’t want to slow down play.
We normally play really slow D&D, with a lot of time for chatting and character exposition, which is cool. But our games can sometimes drag–for example, the players will be cautious, like let’s check for traps on every door, then listen at the door, then ritually cast detect magic, then peek in stealthily, etc. I watched the Modiphius videos on YouTube of the Signals game, and things seemed so much more streamlined than our typical games. I’m hoping that’s how it goes and we can get through this mission in one night. Then I can ask them if they want to go ahead and create characters next, or move on to the starter set mission with the same characters. Or maybe just do one starship combat before new characters.