I tried this out yesterday on a lan with a couple of friends, it works pretty well excpet for (unless im doing something wrong), the person running the server seems to be the only one that can give bots commands, it's probably not a good idea that anyone can give bots commands cause you'd have everyone shouting orders at them but the person running the server should be able to specify others that can give bots commands imo but thats probably a wishlist kinda thing.... also the person running that server can't talk to any other human players and the human players can't talk to the person running the server but the human players that join the server can talk to each other. If anyone knows a way around these issues, let me know, if not thats cool... maybe it's still being worked on for the full release.
/edit: should also point out that when we had the server trying to talk to the other human players on the server and vice versa, we did try doing it via all the options available e.g. public, local, team etc and none worked.