If you are sad about the shutdown of KIFFERSTUEBCHEN severs, be it no more! As we have the same server host providing you that awesome ping and stability
All players use sniper rifles and stay on the barge once it arrives at about 2 minutes.
Notes
Judging by end-of-round statistics, the right player deals the most damage to the tank because he has the best view of the tank. Other players have their view obstructed in most cases.
In the case of two tanks, the right player can chip at the second tank while the main players deal with the first (closest) tank.
Since the leftmost player has easy access to the sniper rifle, it seems he's able to deal with most common infected.
Dodging rocks is important to conserving health as it is in most other maps. While it's difficult to avoid getting hit in some cases, players should try to position themselves so that the rocks miss their target or break against the poles of the barge.
If the players are strong enough snipers, the team won't need to use any other weapons other than sniper rifle. There is enough time to snipe the tanks before they reach the barge. Admittedly, this map is very tiresome and also it makes you improve at sniping in Left 4 Dead 2