Hitman: Blood Money

To get the "Normal Mode Complete" achievement, you are required to complete the 11 story missions, and these include:

1. A Vintage Year
2. Curtains Down
3. Flatline
4. A New Life
5. The Murder Of Crows
6. You Better Watch Out
7. Death on the Mississippi
8. Till Death Do Us Part
9. A House Of Cards
10. A Dance With The Devil
11. Amendment XXV
12. Requiem**

**It is not required to complete the level Requiem to obtain the achievement, but you could still complete it anyways if you wanted to.

In normal difficulty you can save the game only 7 times, so I recommend using them at more appropriate times, for example after the completion of a difficult mission, the notoriety system is activated in this mode, complete all missions in this difficulty and it will be unlocked by completing the "Amendment XXV" mission.
Unfortunately you will not win this achievement if you complete the Expert difficulty :(