Hi Tremblay
Our Leagues (ladder) are 3v3 and also 8v8.
The 3v3 does not include the upgrade system you have access to all from the beginning the maps are set to 4 towns 3 to win which increases PvP considerably.
The 8v8 maybe going to 6v6 has the full the upgrade system and is 10 towns to win.
The great thing about Rubber is that you have to capture towns in order as you open them up, unlike traditional warfare were you can just cap anywere and destroy the enemy base to win, Rubber you are require to capture the ten towns each town you cap it will then open up the next couple of towns. Rubber is great for teamwork and ensures some good PvP in every game.
Link to download rubber edition http://www.armaholic.com/page.php?id=16309&highlight=RUBBER or you can acces to his latest builds through our website http://www.warfareleague.com/downloads/
If this is something your interested in please let me know.
Regards