Now, here are images of the entity setup which mimics the one from the original map:
As you can see, I've got a few func_train brushes to act as moving terrain, like the Opposing Force osprey ride. So, a 3D skybox isn't going to work here, I'm afraid.
Above the player spawn is a helicopter, and there's a prop_physics wagon below it (I will attach the two with ropes). Don't ask why, it's for the style, and the comedy.
And of course, there's an automatic startup system there, which has a logic_auto to trigger the terrain, music and the env_fade entity.
I'm asking this because I'm only a mapper for 1.5 years now, and I haven't fully developed that "sense" for mapping.
