Yes, but if you just release one trailer, it should show what the game is primarily about, what is one the website additionally is irrelevant, since most people watching the trailer will never watch it.
The intro sequence is good, but then the intro just extends without showing actual gameplay, only a hint is given as you see people entering smaller spaceships that launch.
So after that sequence you would need to show actual ground combat and better make it quick, since peoples attention span is not very long.
Maybe the Earth and big ships the first 30 seconds, then the next 30 seconds inside the hangar players entering and starting ships, next 30 seconds maybe ship combat and landing and last 30 seconds ground combat, so you would have included a bit of everything in the trailer.