One way to gain faction standing is going on missions. These will be small dungeons / encounters that can only be cleared with certain party members.
This means you won’t be able to take any of your friends with you. Instead, you will get a bunch of generic characters you can pick from and assemble you squad. I’m currently working on a screen that will let you do just that.
This is still obviously work in progress, but you get the idea. You have three character slots. You switch between these with left and right arrow keys. And you have a character roster. You select individual characters with up and down keys. You can see their names, roles and items in the square windows. I will also add their HP and SP. Once you are happy with your selection, you accept and get teleported to the mission start.
That’s pretty much it. I plan to add different systems that interact with this screen. For example, some of those soldiers will not join you if your rank is too low, if they got hurt in previous mission and so on.