Prodromos is missing supplies. The lost supply drop sites were picked clean. Signs point to local vermin.
This task is available once a settlement has been established on Eos. Investigate the terminal with the Prodromos supplies report on the first floor of a building near the Tempest and acknowledge the entry to acquire the task.
Head to one of the navpoints to scan the lost supplies and clear out the vermin. SAM finds it possible that local fauna could have caused the damage to the crates, but Ryder disagrees. You can continue investigating further sites to uncover the truth, or head back to the terminal to finish the task early.