This will be earned while going for the larger achievement of:
The Echelon Agent achievement in Fuse worth 283 pointsGet 5 Stars on all Echelon maps with 2+ players. However if you just want to get this one you can do it with a second controller. Plug your second controller in and press
, you can sign in with a silver dummy profile or with a guest account. Now with your main profile select 'Echelon' - 'Offline game' - then I'd recommend doing either 'Deveraux's Hideout' or 'Fuse Reactor'.
Echelon mode is just like horde mode in other games but sometimes has objectives to complete. I'd recommend switching your second account to Jacob and your first to Izzy (if you have her Med Beacon, so you can easily revive Jacob if he goes down). Just put your second controller somewhere safe and play as normal, concentrate on killing enemies quickly and completing the objectives.