3 Commando Brigade

Map sizes?

For private missions there isn't any answer to this. Some missions require a large map (e.g. Convoys only really start making sense on ~Takistan sized maps) while others (e.g. infantry TvT's) can take part in an 2x2km AO and still work fine.

For the public server, it has become fairly obvious that a certain minimum size is necessary. Maps like Capraia simply don't quite have the variation in objectives necessary to keep things fresh for long.
We can run Chernarus/Takistan/Podagorsk/etc missions for at least a week before they 'get old' but Capraia/Bystrica/Namalsk/Zargabad tend to get old after a 2-3 days.

Taviana should work - if the object pack it uses is arma 3 compatible. It won't work with Alive yet so it is no good for the public. I asked the guys at Alive to index it several months ago. They added it to the 'to do' list, but haven't started doing it yet.