When g_mapvoteFlags does not contain this flag:
4 Multi vote: Allows everybody to vote for 3 maps instead of one, first choice map gets 3 votes, second choice gets 2, third choice gets one
A player can simply type /mapvote MapNumber 3 ( /mapvote 1 3, trial and error can get them to the map they want if there is enough time )
To vote as if the flag is enabled
He can also do /mapvote MapNumber 2 or 1
normal voting is only /mapvote MapNumber with the flag disabled.