Legal considerations again: while using a mod you own the game for is a gray area, distributing copyrighted content is illegal. Emphasize that the user must already own WWE 12.

Now, the user wants a "long report," so the report needs to be comprehensive. I should structure it into sections: introduction, overview of WWE 12, what the SVR 2011 mod entails, its features, technical aspects of how it's applied, user experience, and a conclusion.

In that case, I can mention ShadowVOR as the creator, and note that these mods are fan projects. I should also mention that the mod might not be officially supported and that users should proceed with caution.

Including features such as updated 2011 roster, fixed bugs, improved AI, enhanced camera angles, maybe new taunts and animations. Also, possible fixes for issues present in WWE 12, like poor collision detection or awkward AI behavior.