Mike asked about the best WW2 Europe scenario for MULTIPLAYER game. In my opinion the best is ZWK. It was designed for multiplayer from the beginning and is well balanced.
TSFE has multiplayer version too but it is not yet released. The TSFE PBEM what you can see in this forum was started as playtest game. The idea of it was to get feedback from players to help me design the scenario. Nobody else can play TSFE now because only playtesters have the files. I don't like that anybody plays the original TSFE1 now as TSFE2 is much better and will be released soon.
TSFE and ZWK are very different scenarios. They both have their unique place. Which one is better is mostly matter of individual preference. I advice everyone who likes WW2 scenarios to play both of them.
So, as TSFE2 is not yet released, ZWK is the only good WW2 multiplayer scenario.