I have experience setting up competitive ladders such as this.
I used to run a web site with ongoing ladders. No maximum of players, and several different ladders. Keep in mind this was vanilla
BF2. All were no vehicles unless otherwise stated.
1 vs 1 (Pistols Only, Knifes Only, Infantry Only) - 15 kills per round
2 vs 2 (Pistols Only, Knifes Only, Infantry Only) - 25 kills per round
3 vs 3 (Infantry Only) - 40 kills per round
5 vs 5 (Infantry and Light Vehicles) - 50 kills per round
8 vs 8 (Infantry and All Vehicles) - 75 kills per round
It was pretty successfull. You could only challenge somebody/another team 3 spots or less infront of you. If you won, you take their place on the ladder..a lose will take you down a slot. Defender choses map. Set amount of kills wins round. Best 2 out of 3 wins the match.
Here's an example:
3 vs 3 ladder with 50 teams on it. The 23rd ranked team (lets call them the "Tigers" for arguements sake) can challenge the 22nd,21st,and 20th ranked teams. If the Tigers challenge the 20th place team and win, they are the new 22nd ranked team, and the old 20th, 21st, and 22nd ranked teams slide down a slot. If the Tigers lose, they slide down to rank 24, and the old 24th ranked team moves up to 23rd.
I never had that many teams in one ladder...The most I had was 25 or so in the 1 vs 1 Infantry Only. I had about 8 in the 8 vs 8, and about the same in the 5 vs 5. Everything else had between 10 and 20 teams involved....many people had a team entered in all the ladders.
I will volunteer to
help put something like this together...but not all by myself this time, as school and work are overwhelming me.