Nickname said:
ex:round 1
team 1 vs team 2 -> team 1 wins
team 3 vs team 4 -> team 3 wins
round 2
team 1 vs team 3 -> team 1 wins (team 1 advances to final)
team 2 vs team 4 -> team 2 wins (team 4 eliminated
round 3
team 2 vs team 3 -> winner advances to final
team 1 vs team 4 on some fun map just for fun or they can opt not to play
round 4
team 1 vs winner of team 2 vs team 3
If that system is used, we need at least 4 maps. ctf_2fort, ctf_turbine, ctf_mach4, and ctf_well are the best and they are tried and true in our tournament setting.