Well, I've been thinking lately about creating a total conversion(mod) for Half-Life 2 that would be indirectly based on ARFCOM.(It would have ARFCOM meme easter eggs like Fuck You Arock!, Disengage, Fuck it im foin, and others.) It would also have an ARFCOM style arsenal, maybe zombies, and maybe aliens. It couldn't be directly based on ARFCOM because I wouldn't be able to enlist a whole dev team, that would want to work on a mod directly based on ar15.com.
It will be in the planning stages for a while, but once it gets rolling it will be hard to stop. After there is good community input, I'll whip together a Design Doc. I have worked on several mods before, as a weapons modeller, and I could do something like this, with the help of a dev team.
I will need quite a bot of interest in this to start out. So, what are your ideas for weapons, gameplay, plot? If one of them is truly epic, and I must read it PM me.