Bane's plan was so masterfully planned, he was unable to realize how quick the hiest was executed.
His call for mobile was needed before he anticipated.
Being mobile was a necessary evil, because Bane knew that leading the police on a chase would lure the hot head, batman, out of hiding.
With the bat man out in the open, the police wiuld divert their attention away from Bane. The others who were dispatched were mere bait to entrap the bat man.
Bat man wasnt caught, but still became flustered from not grabbing his prize: Bane.