Mission 1 (Disaster)
LEGENDARY WEAPON 1/6 (Hicks shotgun) – On the way to the cargo hold, in the side room next to the exit to the third level of the gravity pit.
Mission 4 (Hadley has no hope)
LEGENDARY WEAPON 2/6 (Gorman Pistol) – Literally a few seconds before the end of the mission. After you pass the area guarded by the Lurkers, reach the room with the green table. Don’t leave until you pick up your weapon, because the missions end the moment you encounter the Xenomorph.
Mission 5 (Raven)
LEGENDARY WEAPON 3/6 (Hudson Pulse Rifle) – Shortly after meeting O’Neil and obtaining your equipment. Search the adjacent rooms before heading to the surface.
Mission 6 (for Bella)
LEGENDARY WEAPON 4/6 (Vazquez’s Smart Gun) – near the end of the mission, after reaching the warehouse, which will be overrun by the Xenos and the mercenaries if you try to use the exit (shortly before going up the mountain with the elevator).
Mission 9 (Hope at Hadley)
LEGENDARY WEAPON 5/6 (Vazquez Pistol) – soon at the beginning of the mission. When your team manages to open a path inside the colony complex, enter and turn left (you need to find a weapon before returning to the operating room).
Mission 10 (Abandoned and restored)
LEGENDARY WEAPONS 6/6 (Frost Flamethrower) – On the box inside the container from which you take the grenade launcher needed to destroy the third AA cannon.