Personally I would love to play a good zombie mod for Arma 3 in the DayZRP community, why dayzrp specifically? Because DayZRP simply offers the best role-play there is out there. I see some people here talking about how DayZRP is all about standalone and how a change to Arma 3 mod would be bad for the community. I'd like to remind you people that DayZRP wasn't always like this. In fact i'd say DayZRP's primetime was during the time when it was still a Arma 2 mod. Then the change came with standalone and many such as myself didnt bother to stick around to play that clunky game, however it was a necessary move as the mod couldnt compete with the hype.
I think the problem here is commitment. If you were to make a dedicated dayzrp mod it would have to be the main focus of dayzrp, not some side-project. The community isn't large enough for a side project, as seen multiple times through dayzrp history. Not only that, but the mod itself would need to be absolutely amazing, like others have said the competition in Arma 3 is tough. You would need a mod that really sets itself apart from others, a mod that will make the YouTubers and streamers come back and show off this fantastic mod of yours. I'm talking about mods such as seen in Frankie's for entertainment videos.
With all that said I don't think dayzrp has the funds nor the guts to take that step and make this a reality, which I honestly think is a shame.