Under his command, the group disintegrates from within and in a last ditch effort, Fuhito summons Zirconiade, an ultimate summon monster to eradicate all life on the Planet, but is killed in battle by the Turks, and what remains of this AVALANCHE group collapses.
AVALANCHE presumably disbands after Sephiroth has been felled, Shinra Company has fallen apart and Midgar has been ravaged in the Meteorfall.
Its former members are forced to deal with the Remnants of Sephiroth, a trio consisting of the physical manifestations of Sephiroth whose influence remains in the Lifestream, who try to enable his physical resurrection into the world.
AVALANCHE was founded in Cosmo Canyon by a man who learned of the Study of Planet Life and realized the harm Shinra Company's Mako Reactors would have on the Planet.
The movement became to be led by Elfé with support from a scientist named Fuhito.
They are also heavily involved in the Battle of Midgar alongside the World Regenesis Organization, an organization working to protect the Planet and doing their best to keep what Cloud and the others worked so hard to bring.
In Before Crisis -Final Fantasy VII-, three types of AVALANCHE soldiers are fought: the AVALANCHE (Gun), AVALANCHE (Grapple) and AVALANCHE (Magic).
The Ravens are a squad of genetically engineered super soldiers created under the supervision of Fuhito, but even if they are part of AVALANCHE, they are little more than zombies to Fuhito's will.
An avalanche is a rapid flow of snow down a sloping surface.
Nibel - Nibel Reactor - Rocket Town - Weapon Seller - Coal Train - Ancient Forest - ???
I set out to try and make the softmodding process as pain free and user friendly as possible and to be honest I think I nailed it.
When visiting Cosmo Canyon, Barret proclaims the rebirth of AVALANCHE, which from now on focuses on stopping Sephiroth, a rogue former SOLDIER member who wants revenge on the world, rather than fighting the Shinra.