How can I make my offline server play random maps?

Runite

Yeah, like in Goon Haven, after each round a random map is chosen to be the next map. On my server each map after is predictable as it is listed in order on the CTF screen. How can I randomise those map orders?

Eolk

http://www.chaingunned.org/downloads/tribes2/mods/EzRotation.vl2