After playing for a long time I've noticed the # of soldiers available for hire grows into an insanely long list (especially on easy) and trying to put together a decent team for a new base (or find a couple replacements) from the lengthy list can be a real pain in the butt.
My idea is to give an option to delete members off the roster permanently if they're someone you know you'll never use. (such as someone with all mediocre stats compared to the people that are at least competent or proficient in one or more)
Or perhaps a way to filter them by a certain skills capability from most skilled to least. (This would make it easy to find a replacement sniper or what not by filtering all the available recruits by the skill needed)
Not sure if this would be easy or hard to implement though. (The delete option should be dirt simple however)
Currently Ive set up a "prison" base in Antarctica full of nothing but crew quarters where I've stuck all the useless wannabes to slim down the list, but it's a rather expensive solution ($860,000 a month in additional expenses lol)