I'm not even joking when I say this took about 10 times as much work as my previous ports. Let's hope it's worth it!

Here's the full package! It's pretty big, give it some time to download. Also, expect bugs. Lots'a them. These maps weren't made for gmod, but instead for Half-Life 2. Because of that, there's bound to go something wrong at one point or another. Play the original mod if you want a bug-free experience. For now, have fun messing around in these maps!

If you feel like supporting me and my projects, feel free to donate anything here: https://steamhost.cn/steamcommunity_com/tradeoffer/new/?partner=124209973&token=eMuak0BW

With that out of the way, let's get to these addons' description, taken from the official ModDB page:
Set in both the heart and outside of City 17, "The Citizen Returns" contains the final chapters of The Citizen's story, . The story takes place shortly after a failed assassination attempt on Dr. Breen leads to the first ever use of the Overwatch Broadcast system by The Resistance, represented by former garage owner Larry Soderstrom. The Combine forces decide to capture him and try to use his public repentance and execution as a means to appease the emergent rebellion. The Citizens of City 17 however have other ideas in mind. Larry is now a symbol for the rebellion and a key asset in a bigger plot to deal a fatal blow to the Combine and its grip on humankind...

Was neither designed or made by me. Not tested for multiplayer either, but go ahead and try! (Don't forget to give me a heads up on how it works out). Original Source mod on ModDB:
http://www.moddb.com/mods/the-citizen-returns

I couldn't find any copyright or trademark notices on the mod page, so I assumed it was O.K. to upload. Nonetheless, if either the original author, VALVe or any other authority wants this taken down, I will.