New question: What artifact can be seen in the tomb of the headless kings in Olmec's temple run footage? (I'm not really sure if this was the artifact, but let's assume it is.)
(The Rock Quarry Later Went on to Tell Me that the answer was The Much-Heralded Helmet of Sir Gawain)
The Rock Quarry is quite mistaken if he thinks that the helmet seen in Olmec's Season 3 pre-run footage is the artifact used for the "Much-Hearlded Helmet of Sir Gawain." Below are 4 pieces of evidence disproving his theory:
1. The helmet in the pre-run footage is OBVIOUSLY MUCH SMALLER than the artifact helmet.
2. The helmet in the pre-run footage is METALLIC IN NATURE!!! I happen to know for a fact that the artifact helmet was made of CARVED STYROFOAM!!! (the crew wouldn't expect them to return such a large metallic helmet in 3:00)
3. The helmet in the pre-run footage had a FACEMASK THAT BENT INWARD HALFWAY DOWN IT! The artifact helmet's facemask had NO SUCH CONTOURING TO IT!
4. The artifact helmet HAD A FEATHER ON TOP OF IT! The helmet in the pre-run footage had NO SUCH ADORNMENT/DECORATION!
For Further Proof, I offer the following 2 images (Credit to Ed For the First Image):

This is a picture of the REAL ARTIFACT HELMET!!! And

This is a Screen Cap of the Helmet that The Rock Quarry is talking about!
THEY'RE NOT THE SAME HELMET!!!!! Enough Said!
---The_Enforcer
RESIDENT MYTHBUSTER!