Operation Trap Claptrap Trap, Phase One

To anyone who has difficulty finding these, as I did, I will list the locations.

1.) The quest marker is correct. You have to go under the building where blake is.  The way to get there is to go to the west where the stairs are and go under them, follow the path and you should find it.

2.) The second one is fairly easy, keep heading west. You should see a bridge with 2 circles on it on your map.  It is on the ground in the first circular area.

3.) The third one is in the lower section of Tartarus. The path to go down is just south to the stairs to get up to Blake's place, go down and go all the way east to 3 non-terrain "boxes" on the map to the far east.  It's by 3 boxes by the lower building.

Finally with the parts in hand, drop down again to the lowest area to the south to active the turrets.

1.) On top of the building with the quest marker. Get up to where the lockers are on the east side of the building, and jump to the red canopy, the follow it to the first turret.

2.) Go east from turret one. Jump on top of of the brown box to make it on top of the building with the turret.

3.) Finally for turret 3, I did a running jump from the building with the rusty oil barrel to the building with turret 3. Go around the north side and jump up onto some drums, then up to the turret.

Hope this helps!