Pacing. One example:
In GTA Vice City, the first mission was “drive to that place”. The second mission was “beat up that fat guy”. The third mission was “smash those parked cars with a hammer”.
In GTA 5, the tutorial was a bank heist with explosives, automatic weapons, hostages, a shootout with cops, a car chase, and a betrayal by part of your gang. That’s enough story and action for the first 3 acts IMO.
Knock knock.
Who’s there?
A human.
A human who?
A humangous 8 storey tall crustacean from the protozoic era.