Toss a follow on   / avukamu  

A normal mission will give you around 500600 XP every 3040 minutes, this method is quicker for leveling your character and battlepass.

Ideally, you want 34 players on the hardest difficulty.

You will want to bring:
Mortar Sentry
AutoCannon Sentry
Rocket Sentry

0:00 Setup
1:28 Mission Start
4:10 Mission End / Results Screen

You want to place the Mortars in the back, and the other two in places where they won't interfere with each or you. Sit back, enjoy, and enjoy democracy Helldivers!