Liberation of Cologne

The Liberation of Cologne was part of the GDI operation to eradicate the Scrin forces from the New Eden Blue Zone. Although Cologne was recaptured by GDI, the city's Tiberium spill meant that Cologne was later overrrun by the toxic crystals.

Background
When the Scrin landed into New Eden, they surprised the GDI garrison at Cologne so much that the defenders could not form up an even basic defense. Most of the forces were in hiding although the aliens did not ransack the GDI base. Sometime later GDI's Tiberium silos were destroyed by the aliens, allowing the stroed crystals to begin their spread all over Cologne.

GDI insertion
A GDI recon team led by a commando was later inserted at the outskirts of the ruined city. They advanced through the city to scout where the alien base was. There were minor skirmishes between the GDI team and the aliens but they nevertheless found the alien structure they were looking for. They also came across the city's defense grid which was offline near the Scrin base.

Rescuing the engineers
Ascertaining the alien base, the group was then ordered to rescue the engineers on the other side of the river. On the other side was where the untouched GDI base and blue Tiberium crystals near the base. Despite more skimishes between the aliens and the recon team, the group still managed to rescue the engineers and escort them to the base. Two engineers were sent to capture the power plants that power the Sonic Emitter defense grid, to buy the team enough time to reactivate the GDI base and build up theri focres to destroy the alien base.