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Mass Effect 3 Hints
Core Transportation Section.
1 of 7: Go through the door on the opposite side of the area, then look around for some heat sinks, an SMG Ultralight Materials mod, a weapon bench, and an XP-giving datapad.
2 of 7: You can use the weapon bench to change your weapon loadout and to apply the two SMG weapon mods you've found to your M-4 Shuriken SMG.
3 of 7: Go up the stairs and use the door's holographic display to open it, then begin a lengthy fight against numerous assault troopers.
4 of 7: In the third hallway section is the locked door to a clean room that's being swept by sterilization fields. To unlock the door, you'll need to use one of the two terminals that are next to the clean room's windows.
5 of 7: Use the door's holographic display to open it, then look around the clean room to find an XP-giving datapad, a Shotgun High Caliber Barrel mod, a med kit, and a Sniper Rifle Extended Barrel mod.
6 of 7: If you can't get to any of those items due to a sterilization field, exit the room and use a terminal to start the fields moving again, then watch them through the window and stop them when they're in a position that won't block you from getting to whatever you're after.
7 of 7: The same goes for the exit door in the clean room's back right corner. After gathering all the items, reposition the sterilization fields if necessary so you can reach the door, then go through it and wait to get the next objective.