The alien ground forces have no apparent air support .
The Air Force prepares to carpet bomb the Santa Monica area , and the platoon is tasked with rescuing civilians from an LAPD station in West Los Angeles before the bombing in three hours .
The alien ground forces have no apparent air support , so the Air Force prepares to carpet bomb the Santa Monica area , and the platoon is tasked with rescuing civilians from an LAPD station in West Los Angeles before the bombing in three hours .