Help With Weekly Challenge

Hey guys I need your help on what is the best way to get the weekly challenge for this week? You have to get 250000 in any campaign mission. What is the best way to get this.

Couple options -

I personally like New Alexandria, all skulls except Iron and Black Eye on Legendary because I <3 the Falcon.

I’ve also heard you can jump into Lone Wolf on Easy with all skulls.

Ok thank you for that I will gove that a try.