Hello! My name is Daniel and I've been developing a map for the Source Engine since 2008. The map is known as Helm's Deep Reborn and can be downloaded via the Steam Workshop: http://steamcommunity.com/sharedfiles/filedetails/?id=121068229
Helm's Deep Reborn is free to download & play but you need to have the game Left 4 Dead 2 installed in order to play it. My work got featured by Valve and was added to Official Valve Servers. At one point PC Gamer featured my work in PC Gamer Digital Episode 3 and numerous articles have been written about the map.
If you like Helm's Deep Reborn please consider making a donation, even if it's a small donation! The easiest way to donate is by logging in to your PayPal account and then donating to my e-mail. You can also donate by clicking the donate button above and fill in your information assuming you have a bank card. There is also a donate button in the description of Helm's Deep Reborn on the Steam Workshop page.
Optional: If you have donated add me on Steam to get access to the latest version of "The Lord of the Rings campaign" for Left 4 Dead 2, for more info: http://serioussamurai.webs.com/lotr-campaign
All donations are appreciated and I am very thankful for your support!