- "Drop them."
- — Merrick in "Atlas Falls"
After the Ghosts have planted the charges, Logan is tasked to detonate the charges. Once the detonator, which resembles that of a C4, has been activated, the explosion will cause Federation soldiers to fall in the frigid waters, due to the Ice Charges destroying the ice it is planted under.
The Ghosts then get to enter the base through the hole created by the Ice Charges. They aren't seen in any other level in Ghosts.
- BradyGames Official Guidebook