User blog comment:IzumiP/A few words on weapons in Subnautica./@comment-26284333-20151016224220

When making a new world you should be able to choose if weapons will be avalable or not.

Don't like using weapons? Make a world with weapons disabled.

Want Machine guns? Make a world with weapons enabled.

EDIT:

Don't want anything attacking you in the first place? Play creative mode