
Valley
Location: Yosemite Valley, California, USA
Background: The Strogg are using a Contaminator device to infect the region’s water supply. The GDF must destroy it, or let the Strogg turn the local population into mindless zombies.
Objectives:
The first Valley objective requires a GDF Engineer to construct a bridge blocking a critical path to the Central Outpost.
Any GDF unit must drive the MCP to the Central Outpost
The third objective requires a GDF Covert Ops to hack the Strogg Shield Generator
The fourth objective is the Contaminator. GDF Soldiers need to destroy it by planting an H.E. charge on it.

Optional Objectives:
- Capture the Tunnel Spawn Point
- Destroy the Sewer Grate
- Capture the Reservoir Spawn Point
- Construct the Guard Tower
- Construct the Guard Tower