The Bureau Raid is a GTA 5 Mission. In preparation for The Bureau Raid, do yourself a favor and select the best available crew members. As with previous heist missions, you have two approaches: the first involves planting firebombs within the FIB building and then impersonating firemen to enter and retrieve the hard drive; the second is a straight-up attack on the FIB building that requires parachuting onto its roof, fighting past security, and then escaping in an ambulance.