Make damage knock you out of stamina-stuns

[Kotlol]

Controversial opinion: Lower ttk across the board so antagonists lethals will be on par with tasers and batons

Perhaps crit prevents you from doing combat actions and has harsher downsides? Lower ttk would make more sense than other methods of fixing the problem such as getting hit reducing your stun time(imo this makes no sense even if it mechanically works).

This would need an insane amount of rebalancing(nukies) but I think it would lead to more interesting gameplay

It's good in my opinion.
But I think we forget one thing.
"The targeting system"

We only aim at the head or chest. No point in hitting legs and arms as much unless it's for medical reasons.
Stun CLEARLY will not "harm" arms and legs.

The katana for one is a great weapon cause it can cut off arms and legs, forcing security to be more careful.

But if something like lethals could shoot a bullet into the arm, making it unable to be used due to damage... suddenly lethals get a whole different ball park.

I am not saying Staffy number 1 with a fire extinguisher could "break" the bones of your arm easily.
But stronger lethal weapons shooting at the arm? Defintally.

This is probably something that will balance out Stun vs Lethals. Since stun is a temporary but STRONG near instant disable without lasting effects.
Where as Lethals are suppose to send you to medbay... so why not allow more lethal weapons to take out legs and arms of players? 
Now suddenly arms can be put in casts or have to be replaced with cyborg ones, wich makes you want to get "stronger" cyborg arms that do not fall appart at the slightest shot, wich means robotcists have even more use.