Corrupted Spring Investigation

There's something fishy going on in the main New Combine camp. Each and every ballista has a badly corroded torsion spring installed. If someone was to try firing them, it wouldn't work, and worse, would likely catostrophically fail - bad news for the ballista operator. I'm going to check these springs out and run some tests to see if I can't figure out the source of the corrosion.

Steps

 * 1) I need to retrieve and examine the corroded torsion springs from the ballistas.
 * 2) * I need to retrieve one of the torsion springs from the ballistas.
 * 3) * I need to examine the torsion spring.

Rewards

 * At least