Don't they have Earth landers or other shaped modules?
Why don't they have reusable spacecraft like we do?
How long did it take them to get here from their galaxies? How much fuel, food, water, toilet paper and DVD’s did they have to bring with them?
Do they have Blackberry's? iPods? Wireless laptops? MRE’s?
Do they have an ammo shortage also?
They don't seem very advanced to me.