Quick answer
Answer that helldivers.com is the official short entry and redirects to the PlayStation landing page, then label PlayStation, Steam, Xbox, Arrowhead, Discord and support destinations by role and confidence.
Start here when this is the exact player task you searched for. The sections below turn the question into steps, checks, and next pages.
For helldivers 2 official website, use the quick answer first, then check whether the topic affects a code reward, event, item, unit, map, build, value, or upgrade path.