It would be interesting if when your main character reach certain milestones (lvl 35, 70, 105, 195(This is open to debate)) or so you'd get a (second,third,fourth etc.) character but you'd have to level that character up from level 1. It would provide an interesting alternative option for players who don't want to just go around trying to friend overpowered players and using them in dungeons.
Too bad there isn't an option to increase the speed of the game (at least in campaign mode) so it doesn't get boring while you wait for power to build up from your reactors.
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