Half-Life 2: Episode Two achievements

Find every radar cache in chapter Under The Radar.

Unlock the rocket launcher lambda cache in chapter Under The Radar.

Save the missile silo from the Combine offensive.

Kill an enemy by planting a hopper mine.

Secure the launch doors on missile silo 2.

Survive the ambush at White Forest Inn.

Destroy the Combine Autogun in the junkyard.

Survive the Hunter ambush with Alyx.

Defeat both antlion guards outside the White Forest.

Help Griggs and Sheckley hold off the antlion invasion inside the mine shaft.

Kill an acid antlion worker.