This is a one of a kind situation here.
Official sources list this episode as a special or 5.00 or whatever, they call the episode after it the season premiere, but none of all the Crisis episodes during the last 5 years were ever a special.
We have three options:
1. To list it as a special (which we never did before with a crisis episode)
2. To list it as 5.01 (which goes against official listing)
3. To list it as 5.00 (which goes against our policy, we never did that before)
Everyone who cares about this, please vote and then I will bring this to david and jan :)