Gordon Freeman wakes up abruptly from the fact that he plane is flooded with zombies.
Gordon Freeman wakes up abruptly from the fact that the plane is filled with zombies. During the evacuation from the Black Mesa, several headcrabs got on board the plane and managed to attack the scientists, the guards tried to do something, but they lose.
The plane itself isn't bad but there are tons of monsters stuck in geometry.
I was trying to arrange the headcrabs so they could jump.
You can try making brushes illusionary next time, that way they will be visible but non-solid / passable so the monsters won't get stuck.