Here's C-Dogs SDL 0.5.6, a continuation of the original DOS game C-Dogs.
This is under active development and the current developers have added a host of new features, check out their website for more details:
http://cxong.github.io/cdogs-sdl/
Currently music doesn't work but I'm working on that.
Enjoy!
19/08 UPDATE enabled triple buffering, removed redundant video menu options, changed menu instructions
https://drive.google.com/file/d/0BwYi4RGX-HSaanlxeUpNck5xcms/edit?usp=sharing
Thread : http://boards.dingoonity.org/gcw-releases/c-dogs-sdl/