Report to Briefing
After the animation, small walk on Hannibal's deck awaits you. Hear out the doctors (#143) and leave the hall. Turn right, than left and use the door, that are guarded by two sentinels (#144). You'll find yourself on the briefing before the last game's mission.
Leave the briefing room. Go straight ahead and then turn right (the door with the Armory sign). Find soldiers that give away the weapons (#145) and take the modified Shotgun, which magazine now contains not eight, but ten shells.
Report to Drop Pod Launch Bay
Go trough the nearest door, turn left and later turn left again. Find the room with "D.4 Pods 1-15 bustard" sign. At the opposite end of the tunnel you'll find the button. Push it to open the chamber with the launchers. Enter one of them (#146) and leave Hannibal's deck finally.