As fun as this MOD is, I can't see it being worthy of retail, it still needs a lot of work. Same with CS. With the ease of creating cheats for th Half-Life engine, I'll definately not purchase anything. VAC only works for known cheats, and even then they are easy to bypass with a few line changes. Thumbs up to valve for trying, but it's all in vain. UT2K3 is probably the more difficult engine to cheat on, though it can be done, it isn't easy.
I wish Valve would finish their new engine soon and then release DoD retail on it. I imagine that they'll build some sweet anti-cheating stuff right in, which of course can be easily updated just like the current VAC. Then, and only then, might I buy DoD.