Can you complete missions in grand theft auto online without a story?

The Wikipedia entry for Grand Theft Auto Online describes it as an online multiplayer component of Grand Theft Auto V, noting its open‑world design and the ability for up to thirty players to explore San Andreas. It does not detail any specific mission structure, narrative content, or the possibility of completing missions without a story. Because the source provides no information about mission types or the presence of a storyline, it is not possible to confirm from this evidence whether missions can be completed independently of a narrative arc.