Here is a list of each location and if they are obtainable in story mode noted:
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A:Five artifacts
you have to get all the artifacts on raiders of the ark
all 180
If You Go Onto Extras And Go Down You Will Come To Either Treasure Detecter, Or Artifact Finder Or Something And There Will Be A Red Arrow Follow It And It Will Lead You To The Artifacts :D Hope This Helped !
Probably russian Ural M-63 (Ural-2)
all i know is he has at least at the most five i know
collect all the artifacts
Yes.
No but there is a cheat that shows you where to get the artifacts.
no not unless you have powersaves it is hopeless
If you buy the Artifact Detector you can find them easier.