I would've liked it very much if the player could've had a set scheduled part-time job with the Silver Rush. I'm talking you go in and talk to Gloria, and she sets up 6 or so hours on a specific day of the week for you to do the job. The quest (or job) must be dynamic and random, people don't just come up one after the other with crazy stories and weirdness. It should be so that sometimes you'll get a good few people every 10 minutes (real time) wanting access, and then sometimes you'll get absolutely no people attempting to get in. It'd also be awesome if you very rarely and randomly had to deal with thieves who are already inside making a run for it with that shiny fully loaded plasma rifle. Hell, maybe you're not even guarding the outside of the Silver Rush, maybe you're a guard on the inside. Maybe you're just safeguarding a Caravan from one point to the next, having nothing to do with Silver Rush at all!
I guess it's not JUST the idea of being a guard, but it's the idea that you yourself can apply for just about any job, rather than doing specific adventurous and limited jobs (quests) for specific factions and people. The ideas are endless, actually being a scientist getting paid hourly at a university, contributing to the cause of creating new chemicals and meds, or being some sort of pharmacist. Maybe I just need to play Sims lol. One thing I'd hate to see happen though, is the implementation of a guard job, and then allow the wait function to work so you can just skip right on ahead and get immediate pay, you'd have to consider disabling the wait option for specifically this job.