Host: v3.01 , client: v3.00 How is this working?

[Endoperez]

His battles will probably look wrong. The replays often won't be exactly the same in different versions, and even the tiniest change causes everything after it to be randomized again, resulting in wildly different battle results.

The server's calculations are always the only ones that affect the game. Even if his battle review shows he won without losses, if battle report says one commander died, one commander DID die.