Rock the vote can be enabled on your server.
mani_vote_allow_rock_the_vote 1 // Allow rock the vote
This function allows players to nominate maps that they wish to see in a random map vote. The user then types ‘rockthevote’ to start a random map vote (including the top nominations)
mani_vote_rock_the_vote_percent_required 60 // Defines the vote percentage required to set map mani_vote_time_before_rock_the_vote 120 // Time before rockthevote can be started after a new map starts mani_vote_rock_the_vote_number_of_nominations 4 // Number of nominations included in the vote mani_vote_rock_the_vote_number_of_maps 8 // Number of random maps chosen from votemaplist.txt mani_vote_rock_the_vote_threshold_percent 60 // Percentage of players on server required to type rockthevote before it starts mani_vote_rock_the_vote_threshold_minimum 4 // Minimum number of players required to type rockthevote before it starts