Smoking is awful, disgusting, and through the diseases it causes puts a massive burden on the healthcare system… buuuut, educational campaigns to encourage people to stop and limiting it in media/banning advertisements is definitely the way to go over yet another prohibition law.

If the game is set in the “real world”, an advertisement for a fake brand of a real product is, to me at least, more immersion breaking than it being a real brand for that product. Now if the game isn’t set in our world it’s a completely different story.