When I play Skyrim I′m not really the roleplay type of guy, but I still prefer to do ''stuff'' in a ''realistic'' way. For example I only join one guild on each character since it's lore/realistic disturibing to be at several different guilds at once. (Sorry If I′m giving you a hard time understanding what my point is

) However, I receantly purchased the Dawnguard DLC and I′ve started a brand new playthrough with a Light Armor Warrior.
My question is simply: In which order should I do The Main Story, The Companions, Civil War and Dawnguard? I think you should do the civil war early, since you start off as a low ranking soldier (A dragonborn killingmachine as you are after the main story doesn't fit in that role) So maby Civil War-Companions-Dawnguard-Main story?
What are your thoughts? How do you play the game to support the lore as much as you can?
