Reach Precursor core was a mission in Jak 3. Veger had gotten ahead of Jak in their race for the catacombs, so he followed him down to the Precursor core.
Walkthrough[]
Another race through the catacomb subrails, much like the earlier mission "Travel through catacomb subrails". Concentrate on avoiding the gaps in the track and shooting down any obstacles. The route isn't very long and there are no specially difficult sections. After a cutscene at the end, you will continue right away with the next mission: "Destroy dark ship".