Why not new ones? Your ACR missions were great, but I'll always prefer new content over remakes.
Not 1:1 remakes, I can always swap stuff around
It's just easier to start off with a couple of missions I already know work out ok.
Always happy to have comprehensive modern day (or older) army mod in Arma. Finally, Czechs does not have that fancy gadgetry, though I would prefer units from CSLA timeline.