If they want to add alcohol, and cigarettes, sure. So let's be fair. How would these be utilized the best in game? As a role-playing element. A blurry screen or something is fine, but none of these things should have benefits or long term negative effects. They should just be fun additions to the game. As far as the guitars go. Yes, 100%. Adding in guitars that play preset sound files would be really cool. I can play the majority of those STALKER campfire songs, so I was massively disappointed that I couldn't direct chat my guitar to my friends.