Slowly Opening Doors

We should be able to slowly open doors. This could help people who like to sneak around but it’d also be tactical. Imagine you’re sneaking around a building and you simply don’t know if theres a machine in the room you’re going in. Or if they already are attacking you, then you could use a door for some cover while shooting out. To balance this (im not sure how simple this would be) but you could make it to where when a machine has targeted you, and attempts to shoot the door with a chance for each bullet to go through the door, depending on the type of matieral, of course. Of I dont actually know how games are made so I have no idea how you could actually balance this. Also, I apologise if someone has already suggested this. This is my first time using this forum and I couldnt figure out the search feature (lol).