How do i add vote for map function during intermission of roblox's capture the flag template?

I used the ROBLOX Studio Capture the Flag place for the basics of the game, but I want the game to be able to change maps during intermission, preferably for players to be able to vote for which map, but if not i would like some sort of map selection to take place during intermission. Is there a way to do this with the current ROBLOX Capture the Flag place? Do I need to add a new script or add to the existing script of ROBLOX Capture the Flag? Please help, im still very new to scripting but I am willing to learn, just need some guidance...i searched the web but had trouble finding a solution to this. There are so many scripts in this template, idk which one to go into...Maybe someone can open the template themselves and find the solution for me?