Military transport planes do indeed have parachutes because the possibility of an attack is quite large.
Jason had already put on a parachute, Yang Yi thought for a moment and decided to accept the parachute Jason handed him, then put it on.
No harm in being prepared.
He pulled the door, and it unexpectedly opened; it wasn't locked inside. He didn't know if this was an oversight by the pilot or if the door was deliberately left open for Yang Yi.
The pilot on the main seat tilted his head to one side, the copilot's seat was empty, and the loadmaster sat in his own seat, already dead.
Yang Yi took one glance and could see the current situation. The reason the door wasn't locked is that someone killed the pilot and the loadmaster in the cockpit. They first killed the loadmaster, using blunt force to hit him on the head while he wasn't paying attention, killing him with one strike, then immediately turned to hit the pilot on the back of his head.