"The Final Load Test" is the warfare between the "Human World" Army and the Army of the Darkness, which involves all the land in the underworld.
The war situation gradually changes into the battles between the Gabrielle clan from the "Dark Territory" Army, which seeks to take back "Maiden of Light" Alice, and the "Human" Army including Asuna, who wants to protect the underworld.
While Kirito keeps sleeping deep in the psychological world, Gabrielle is also known as "Emperor Vector", making millions of the actual players from the United States log in, and attempts to eliminate the "Human World" Army.
Asuna and others fight back with 3 super accounts which have the names of the creators of the underworld.

Asua, who receives the super account of "Stacia, the Goddess of Creation", undergoes the fierce battles against the American players together with the "Human World" Army, and Shinon, who received the super account of "Sun Goddess Solus", goes after Gabrielle, who kidnaps Alice.
Also, Leafa, who received the super account of "Terraria, the Goddess of Land", arrives at the underworld.

That is not all. "ALO" players who are affected by Lizbet's appeal, convert their trained characters and begins to participate in the "Human World" Army!

This warfare does not determine the survival of the underworld. It determines the survival of the bottom-up-style artificial intelligence and the future of humans.