Planets are ranked in order of difficulty from 1 to 12, and completing planets increases the region's community influence, ultimately contributing to winning the War.
There are three different planet types: Desert, Snow and Forest, with each terrain type presenting unique challenges for the Helldivers. Swamps and deep snow will slow down movement for the Helldivers, but beware, many enemies are not affected.
Missions and Objectives
Every planet consists of between 1 - 3 different missions, each carried out on a procedurally generated map populated with enemy scouts. Once all missions are complete on a planet, Helldivers are rewarded with Stratagems or XP.
In any given mission a random selection of Objectives are assigned. Objectives can be completed in any order, and generally fall under a few categories: exterminate, destroy, retrieve, escort, deploy, diffuse, assassinate, capture and extract.