JOBS:
While I do agree that the jobs menu does feel a little empty at times, I don't believe the solution would be over-saturating it with more afk-base jobs. A bitcoin miner job would be so close in resemblance to that of printers that you may as well just add more slots to the thief roll... I think that there should be more thought-out roles such as Master Meth Cook & Pizza Chef, something a little more interactive even. What the job could be I'm not sure, but more of quality jobs need to be added, as the current amount isn't substantial for when the server pop caps at 128 players (no the solution isn't increasing current jobs capacities).
ACCESSORIES:
I think character customization would be very cool, who knows maybe it could be a whole new case collection for the new cosmetics... maybe even a new perma case for them to make more irl $$$ off of. Realistically you could do many different cases for the different cosmetic types and then go so as in-depth to even add different case themes. Cosmetic Types could be Hats, Masks/Facial, Neck, Torso/Backpack, Legs, Feet, ETC. EX of cases: (HATS Summer Case)(HATS Winter Case). This could all be added within the !unbox, at which point I don't see why the Atomic Title Store wouldn't then also just be added to the same !unbox Menu... but maybe that should be for another Suggestion Thread.
GUNS:
Not really seeing what you're talking about when it comes to needing more op guns to raid or defend with. The current guns seem pretty fair when it comes to damage output, and better guns such as a oneshot awp exist... but behind a $20 rng-crate paywall. Honestly though, a double-barrel shotgun for ~$80k should do you nicely if you are looking for an OP gun otherwise most guns aren't bad.
ARMOR:
Good armor does exist at the Medics located around the map, but personally I opt out of armor as it is $75k which tends to not be very profitable even if raiding.