Public servers are more or less out of the zeitgeist nowadays in Arma communities. It's not necessarily difficult to do but the amount of work and upkeep required with the addition of just typically un-fun/repetitive game modes makes it of questionable worth in regards to input/output. You can see this in the 15th and the 506th as well, as the amount of "public" Arma players have just drastically dropped in the past 4 years.
However, all of the above is just this Petty Officer's opinion on the matter. Perhaps we'll have dedicated personnel in the future to run it, but IMO, there are bigger fish to fry with the time we have.
TL;DR -- Nah.
