Here is one of my favorites - "slipspace rupture detected, slipspace rupture detected, slipspace rupture detected, slipspace rupture detected, slipspace rupture detected, slipspace rupture detected, slipspace rupture detected, slipspace rupture detected."
Another one of my favs from Halo 2 -
"Sir, permission to leave ship?"
"What for?"
"To give the covenant back their bomb."
"Permission granted."