If the CMS could stay alive for more than launch week and CEC didn't become almost exclusively rebels it'd be great to use them for some things like that.
CMS was irrelevant because citizens almost never get injured. It's always obviously those in combat positions like Units (who have medical staff) and Rebels (who also have medical staff?), leaving nothing outside of the extremely rare event for CMS to do literally anything and CEC also really has nothing to do outside of events. Think about how many more possibilities there are for them if they could work on Combine technology without getting executed.
On the rebel thing, I'm not really privy to how frequent that was, but I feel it should be dealt with ICly.
It's like there's an verbal effort to be more hands-off OOCly which is great, but when it comes to things like resistance movements naturally growing its gotta be clamped down on for some reason OOCly. I'd like for there to be reasons for why someone would go rogue or whatever, but honestly with an oppressive regime like the Combine, it should be fairly expected outside of the self-preservation risk. And let's be real, it's not like the vast majority of players who decide to go Rebel really make that decision based on any influence ICly, it's usually predetermined OOCly and metagamed. If it were up to me, Resistance would be an official faction with applications with backstories to get in, a mirrored faction of CivPro.
If Civil Protection doesn't have any citizens to keep in order and prevent from turning to the side of the resistance, it turns into last run where it's a friendly fuck-fest with units and the few remaining citizens not in a faction (which I think
can be good RP, but it should be few and far between), and war events between CivPro and Rebels with citizens doing absolutely nothing as usual.
Edit: I don't want to be that guy either that stands and says that scripts are necessary, but let's be honest, we're RPing in GMod for a reason, they help enhance the experience. Even if there was a script that occasionally gave people illnesses to RP (no in-game negative effects necessarily), that could be treated by CMS, it would give them literally at least a breadcrumb of purpose. I'd like to have a Mental Health subdivision of CMS with therapists and whatnot personally, to encourage all Citizens to perform at their best and even for Units who aren't comfortable with MemRep procedures.