So, Hosting a Ninja Warrior Lobby in Contractors today at 18:00 UTC.
Get the Ninja Warrior mod and these maps

https://contractors.mod.io/mw2-mp-brecourt
https://contractors.mod.io/windfallisland
https://contractors.mod.io/waw-mp-castle
https://contractors.mod.io/splatoon2portmackerel
https://contractors.mod.io/colegasvr