EMS Madara and Hashirama VS Allied Shinobi Force
Location: Madara VS 5 kages
Restrictions: Offensive uses of kamui
Knowledge: Full for Allied Shinobi force, none for the two legends
Starting Distance: 1 km
Basically all the divisions in the Allied Shinobi forces fight against an alive Hashirama and an alive Madara all at once. Remember there are 80 000 chunin and jounin level ninjas in it. Here are the members: 5 kages, Konoha 11, kage body guards, Kakashi, Gai, Omoi, Karui, Shizune, Shikaku, Inoichi, Chouza, Kitsuchi, Mifune and anyone else I might be forgetting.
Note: Killer Bee shows up fine minutes after the battle begins and Naruto shows up 10 minutes after the battle begins.