Thanks :)
I'm usually not for random things in stealth games but in that situation I think it could be useful and adds some tension. Only because the randomness in that situation would not go against the player. If the player pays attention to his surroundings while doing the interrogation then he'd press the button as soon as a NPC would approach. If he doesn't see that NPC or if he doesn't care and take the risk to continue the interrogation then he would only have himself to blame. And I feel that the random aspect of the guard yelling or not would emphasize that risk-taking.
Now something tied to enemy archetype could possibly work as well and it would probably make more sense. However I think there wouldn't be any real challenge after the first missions as the player would directly detect and know which type of enemy archetype have been programmed by the devs to yell.
So I don't know, maybe a mix of both systems would be the best, being more believable and giving to the player the real feeling of taking a risk that could pay off or turn things upside down.
Anyway even if it has to have a part of randomness, I think this should represent a small percentage of risks and at the same time be tied to the difficulty level (ofc).
The guard yelling should not be too rare to encourage the players to be careful all the time during interrogations but it shouldn't occur too often either otherwise players would end up hating that mechanic and not taking any risks anymore.
PS: I have illustrated the "Y" button from the Xbox controller in the comic strip. However that was just as an example. Thinking more about it now, maybe "LB" or "RB" would be more appropriate as the player would have his/her right thumb available for the right stick and be able to move the camera.


