As you get closer to the Citadel, the Combine resistance becomes even fiercer. You'll encounter more Striders and Gunships, requiring strategic use of rocket launchers and other heavy weapons. You'll also face Combine Elites, who are tougher and more aggressive. The environment becomes increasingly hostile, with Combine energy barriers and traps. Your ultimate goal is to reach the base of the Citadel. The chapter ends as you prepare to infiltrate the massive Combine fortress.
Half-Life 2
The Citadel's Shadow — Half-Life 2 Walkthrough
Prepare for infiltration in Half-Life 2's The Citadel's Shadow. Fight tougher Combine Elites, Striders, and Gunships as you near the fortress.