Half Life 2 revisits several locations from the beginning of the game in "Anti-citizen One" during the uprising.
Is any HL2-location featured in EP1? A single point of reference would mean that the entire EP1-campaign could be mapped onto HL2's.
>>385120535
The train station maybe? But I think its a different part of the train station in EP1
Well. You literally go through the citadel. Which is like the most prominent part of City 17.