some media image - Operation Harbinger mod for Half-Life 2

Set in the not-so-distant future, you and your small team of government trained elites are sent into an enclosed city after lifeforms had been detected within the walls surrounding the city. Your job is to infiltrate the city, navigate your way to the center, collect whatever data you can from the inside, plant a bomb and get out. The activity inside the city has been deemed extremely hostile and very deadly. Thus the government has decided it would be vital that the city and what it hostile life it contains is terminated. Because the city is contained, it would do more damage to detonate a device from within rather than outside the cities containment zone. That is your job. Make it to the center of the city with your team, plant the bomb and make it out alive. (FYI: This is a placeholder summary. The actual summary is much better and will be put here when the text file is located. A better summary is well on the way.)