So, I finally got around to finish the battlegroups thing - you know, that thing that has been in place for ages and keeps bugging you for your pin.
So this is how it works:
you go to
http://battlegroups.c-rpg.net and create a new battlegroup. This is entirely unrelated to the cRPG Website, as in, you can do it for you personally, for your clan, for a group of friends - whatever. There are no limitations.
With this group, you can then go shopping. This means that you can buy as many things as you want, there is no gold limit. The big difference to strategus is: in strategus, when a person dies, he loses this piece of equipment. In Battlegroups, when a person dies, his equipment goes back to the group inventory. So if you have a game of 10vs10, and you want to equip everyone with horses, you only have to buy 10 horses, and it's guaranteed that everyone can have a horse all the time.
So, after you have bought equipment, you can stage a battle against another group that did the same. Simply create a new battle, select gamemode, map, score limit, time limit etc. When you are done, you can send the PIN of this battle to the other group, and they can join up. Now this battle has a unique id and a PIN.
When you join warband, you can select an autobalance mode called "Battlegroups". Select this, then click on "submit poll" - here you can enter the ID and the PIN of the battle. The selected map and gamemode will be loaded, as well as the equipment for both sides, and you will spawn on the map, but locked down in your position. If you click "submit poll" again, you can now toggle the ready status. When both teams have done this, there's a countdown of 30 seconds, and when that is over, the game finally begins.
This mode is intended to create fair matches between both teams. You can use that on any server you want that is set to battlegroups mode. Feel free to ask whatever is still unclear.