Crimsons

I am thinking of buying Arma 2 to try this mod out but since Arma 3 is coming out I don't see if there is a point in buying Arma 2. Would the mod still even work on Arma 2 because I'm guessing the DayZ developers will use the Arma 3 engine or they will go standalone. Any suggestions?

Yeah same, might as well just wait for the stand alone but thanks for everyone's advice :)

Alright thanks for clearing that up. Btw do you have any idea on the required specs for the engine it will be running on?