Add a short cooldown to the traitor invisability cloaker.

[BaneOfGiygas]

Dealing with traitors, especially a cloaker, is Sec's job first and foremost.

In the event there is literally no sec or head position willing to bear that burden, then at that point it becomes some poor sap's job. At that point you will in fact have to do some hunting for a flash, yes. However, all you really have to do is get into robotics. Is there a roboticist? Flush yourself to the morgue, he'll greet you there assuming you're a dead guy. Is there no roboticist? Find a borg and tell them you'll upgrade your cell if they let you in. Is there no borg? Ask the AI to let you in. Is the AI either dead or being a total bitch? Bust the window down.

There's a reason it's hard to deal with well-equipped traitors when you don't have Sec gear. It's supposed to be that way.

You do raise a fair point, it just seems like the cloaker is a particularly egregious case of this phenomenon. I'm trying to say that, even if security's job is to dispatch traitors and such, the rest of the crew shouldn't be running around like decapitated chickens in the case of a nonexistent/dead/incompetent security team. Those are all valid counterarguments that you bring up, but I'm just not sure of their practical application. I'll admit that I've seen pretty much no one use a cloaking device before, so I'm talking theoretically as opposed to practically.

sleepypen is balanced by the delayed action

so it's balanced because the person has enough time to poke you and then run away before you receive any indication that you've been lethally poisoned and are going to die?

sounds like a pro and not a con, to me. Plus there's nothing stopping them from filling it with something that immediately fucks you up like, say, ClF3(which you can make in about 5 seconds in the bar).

Sleepypens are balanced out by the fact that pretty much everyone is paranoid about letting people into adjacent spaces; if you suddenly start dying and you know that Asshole McGee was standing right next to you earlier, all you need to do is shout an accusation over the radio with your dying breath. Even sedatives take a while to kick in, and if you're quick enough with your reaction time, you can figure out what happened easily. Their use of a limited reservoir also means that you can only jab so many people before you have to run back to resupply, time that the crew can use to ambush you when you're out of murderjuice. Both of these also apply to the radbow: It's quite apparent when you start suddenly dying, and it has a long-ass time between shots.