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EnglishAttention: The issue described below regarding the expected values for the WN8 rating has been fixed by the XVM team and is no longer relevant.
The most frequent question about WN8 lately has been the discrepancy between the values shown in XVM and on third-party websites. We have repeatedly provided explanations on this matter and decided it would be best to compile the key information about the problem in one message.
Before we continue, an important clarification: we (the XVM team) are not the developers of the WN8 rating and are not affiliated with them in any way.
So, let’s break it down:
Why do the rating values differ between XVM and third-party websites?
XVM uses the expected values table v.29.1 — the latest available with correct values, while third-party websites have switched to using the incorrect table v.30.
Why is table v.30 incorrect?
WN8 is not a static formula but also a set of expected values that must be collected and updated in strict accordance with the methodology created by the WN8 rating developers.
Unfortunately, the formula developers no longer maintain their table of expected values.
However, some enthusiasts have decided to fill in the table manually, rather than in accordance with the WN8 developers’ methodology. This means that instead of filling the table based on real statistical data, deliberately unreliable values are used.
In fact, the rating calculated based on the v.30 table cannot be called WN8, as the fundamental principles of calculation are violated.
What will happen to the WN8 rating in the future?
At the moment, there is no definitive answer to this question. WN8 is dying. If no one takes care of collecting correct values for WN8 in the near future, it may be excluded from XVM in the future.
Of course, we considered the possibility of collecting expected values on our side. This could solve both the problem of correctness and the infrequent updating of the table (and therefore sharp jumps in the rating), but a detailed study of the developers’ approach showed that the collection of values is not fully automated and requires manual control, which is unacceptable in our case.
I’m used to WN8. Which rating should I focus on now?
In addition to WGR, EFF, WN6, you should also pay attention to the per-tank xTE rating (we do not rule out that in the future we will consider introducing this rating for the account as a whole).
But as before, we do not recommend a specific rating, but leave the choice up to you.
The current WN8 values in XVM are still correct for the vast majority of players, but do not take into account results on new vehicles.
If new ratings appear that do not suffer from the shortcomings of WN8, we may consider adding them to the mod.