Four_zero_two

So, i just bought ARMA 2 Arrowhead since i couldn't find a copy of the original ARMA 2. I've been hearing a lot about DayZ, with the realism and zombies. As an avid zombie fan, ('geek', if you want)i enjoy Survival-Horror games involving zombies and i love how you are supposed to remain Hydrated, Scavenge for supplies, and kill each other just for one can of beans :P Fallout with Zombies. Unfortunately, i don't have the 'Original', and i don't know if Arrowhead is Compatible. So is it? Or do i have to find another copy..probably download it.

So, the mod will work even if i only have the demo version of ARMA 2?