-1
We tried to do this before, ya' boy Duck tried to implement a key card system and it was denied.
But to actually discuss it, it would have to be added to each persons job, however, say you are a Commander who uses a trooper job, do you have to have clearance spawned to you? If you account for the jobs people of rank use, then you would have to spawn a NEW CARD EVERY TIME someone respawns. Not only is this complicated and would create a lot of issues, but just downright unnecessary.
Then, we have to decide who gets what? How do we update it based off promotions? For example, a 2ndLT gets promoted to Captain, would he have to get a new card? It would have to be spawned for him based off his job.
Finally, it just seems like unnecessary additions to the server. Take the opportunity cost of adding this and compare it to anything else on the workshop. There is far more important things we could add, than have to deal with a complex key-card system.
To sum this up, you would need to SPAWN A CARD FOR EVERY PERSON IN THE SERVER EVERY TIME THEY RESPAWN. Tell me how that is a good idea.
It's not.