Pick up the crowbar of research scientist Gordon Freeman, who finds himself on an alien-infested Earth being picked to the bone, its resources depleted, its populace dwindling. Freeman is thrust into the unenviable role of rescuing the world from the wrong he unleashed back at Black Mesa. And a lot of people, people he cares about, are counting on him.
I have re-created The Principality of Sealand in Half-Life 2. I based this map on many different reference images from around the internet, but I was not able to find photos of certain areas so some of this is guess work, so don't expect an accurate 1 to 1 re-creation.
This would be perfect for a map based around the Conscripts from the beta.
I am so astonished that the source engine can handle an entire country in one map.