No precursors.
Keep in mind that Dora:
Has a pocket dimension equipped with whatever she needs.
Can freeze time to make tactical desicions
Is capable of convincing anything, animate or inanimate to help her, so long as she has an established goal.
Is capable of crossing extreme distances and conditions without food or water.
EDIT:
Dora has Diego, Boots and Swiper.
Map is capable of locating anything within the known universe, and a path to said thing.
EDIT 2:
Dora can summon stars to do her bidding.
Dora can walk on intangible objects/light (eg: rainbows)
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Master Chief solos