User blog comment:DeadDATA/Cerberus In ME3: How They've Grown/@comment-2256917-20110822014820/@comment-1900300-20110823070437

Or in deallin with problems the Reapers cant deal with, like situations that reuire subtly, rather then brute strength. like inflitrating planets to sabotage them and weaken the planets military and econmy before the fleet arrives