Learn German: Die Fans warten heute vor dem Stadion. - The fans are waiting in front of the stadium today.

In German, when you have multiple details describing when, how, or where something happens, time usually comes before place. This rule is often called the Time-Manner-Place rule, or TeKaMoLo. Here, the time word heute (today) naturally comes before the place phrase vor dem Stadion (in front of the stadium).

Why is it vor dem Stadion (dative) instead of vor das Stadion (accusative)?

The word vor (in front of) is a 'two-way preposition'. It takes the dative case when it describes a fixed location (where?), and the accusative case for movement to a new place (to where?). Since the fans are just staying in one location to wait, we use the dative form dem Stadion.

Does vor mean 'for' in this sentence, like 'waiting for the stadium'?

No, vor means 'in front of' or 'before' when talking about locations. If you wanted to say 'waiting for', you would use the preposition auf (plus the accusative case). For example, Sie warten auf den Bus means 'They are waiting for the bus'.

Is Fans a regular German plural?

Yes, for borrowed words! Many nouns borrowed from English or other languages, like der Fan, das Team, or das Hotel, form their plurals by simply adding an -s. So der Fan becomes die Fans.