Darth Revan (DS, full fanwank version) with Fanwank HK-47 vs Shinra Corp.
At the start of FF7 Barrett hires a mysterious cloaked and masked figure and a orange 'metal man' as hires.
Revan has: (Revan's Robe, Sith Mask) plus full fanwank/best equipments and all DS darkside abilties. HK also has his best equipments. (HK has assassination protocols.)
By act of plot, Shinra (then Sepiroth) have a gem that will give Revan a portal back home. Little does everybody helping her realize she just wants the gem so she can make a portal in orbit so she can come back and invade later. But that's not important now. :)
Starting at the attack on Reactor 9, how far does the team make it with Revan and HK-47?