Creative Assembly and Steam.
I got impatient and got the game (Shogun Total War 2).
Perhaps I need to seriously consider my love-hate relationship with CA. Partnering with Steam makes installation a pain. The only way to install the game is via a download of 26 GB. Are you serious?!
Luckily, there are some workarounds.
1) Load and Log in to Steam
2) Click on Library and then right click on the game -> Delete Local Content
3) Insert the CD into your disc drive
4) Exit Steam, then go to Start -> Run -- and type:
"C:Program FilesSteamSteam.exe" -install E: