[Minomato]

Well, the real problem with the chainsaw is "Spar Laming", which is when the chainsaw stands in front of the door with the chainsaw on, so that if someone comes in, they take immediate damage and can be killed even easier. That's illegal, and that can be dealt with. If they want to spar fairly, then I don't see it as a problem. Chainsaws are easy to counter, if you use certain weapons and a class with a speed bonus. Plasmasabre will beat anyone with a chainsaw if you get them first and keep hitting them. Anything that can lame or slow down the chainsaw wielder works as well. Chainsaws are slower than normal when they are running, so use that to your advantage -- backstrafe if needed.