Board Thread:General Nerf discussion/@comment-37798126-20190111191049/@comment-26431461-20190112004126

I think one in the chamber is a gamemode where you only get a single shot blaster, and you only get to reload a new dart every time you tag someone with a dart. If you miss, you need to use a melee weapon. At least, that's how I played it with my friends before.

It's based off of a gamemode from COD.