Helldivers 2 offers you two ways to earn a lot of medals, including personal and grand orders. While the first one refreshes daily, the tasks you get in it are simple and easy. On the other hand, grand orders remain active for several days, so the tasks you get in it are quite complex. At the time of writing, Super Earth has been forced to pause its war against the Terminids. The Xzar sector is under attack by the Automatons, the Robots and the Helldivers are tasked with repelling them.
Helldivers 2 – I tested EVERY new weapon in the Freedom's Flame Warbond
As a result, the new Major Order in Helldivers 2 is to "win at least 8 Defend Campaigns against Automatons." The reward for completing this Major Order is 12500 Requisitions, so you shouldn't avoid it. To successfully defend those planets from Automatons, check out this guide below.
As described, you need to win 8 defense campaigns against Automatons to complete the Major Order. If you go to the Galactic War map, you will see that there are planets that are invaded by the Automaton Faction. So as part of Super Earth, you need to defeat and liberate the victim planet.
While defending a planet, you will see two bars, red and blue, on the map. The red represents the enemy and the blue represents you. So, you have to defeat the enemy and fill the blue bar to defend and free that planet from Automatons.