As the title suggest, it would be nice to be able to give the characters new names / pictures for custom missions.
If you want to put in an actual storyline, it would be a little odd having to rely on the same characters that we see in the main storyline.
As someone who wants desperately to create their own storyline, this is absolutely mandatory for me. CW3 had this system already, so it doesn't seem particularly unlikely. But I'd also like to ask that if customizable characters are added, that there be an option to include more than the amount used by Virgil in the campaign. Sometimes that number simply doesn't cut it, especially if I were to go ahead with what I already have in mind.
And overwriting the existing ones can be problematic if we want to use them too.
That said, it took the entire campaign to get to know the characters included there, so we need to make sure that there isn't a cast of thousands.
Extracting char images as well as other custom images would be nice.