I Just Finished all Objectives in the tutorial and then Placed the Relic in the Jeep and Closed the Back Hatch.
Job Well Done.
You Will get some more Optional Objectives if you find Mummified Remains or a Royal Mummy.
Just make sure you walk ON TOP OF THEM to recieve the quest to take their picture (Has an Audio Que) before you start wasting film ;D
I Do Not Know if you can finish this without doing all of the objectives, because I did them all. ;D
That said once I grabbed the relic, I never saw the Mummy Hunting Me Before I Escaped.
GL!