What does "Research" do in Tailraider Safaris?

When selecting a squad to deploy the Tailraider Safari, it displays their skills at the bottom of the window:

I assumed the hunting/gathering rating reflects how successful the squad will be on nodes of matching color, but there are never any blue nodes. Only red and green. What does the research (blue) skill accomplish?

1 Answer

Research affects your chances of receiving Investigations from the safari. A higher Research means more Investigations.

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