A - At the start head all the way to the west edge, turn around and look up. It will be just after the divider at the complex behind you.

E - This one is hard to explain, and see, you need to follow the western edge until you get a part that sort of arches inwards significantly. Go somewhat north of this, turn around and search the wall of the inner arch for it, look very close, it blends in quite well.

I - Just after the staired compelx area and the 2 T-ENG containers, on the ledge above to your right will be the mark.

R - This one is at the warehouse where the boss is, be careful not to enter. Go on the right side of the building and follow the pipe that goes into the warehouse, it will be just past the wall (you can barely see it). Also you need to be on the pipe (the one to the right in the picture) and crouch to shoot it, you can not shoot it from the position I am in in the photo. Again, it is on the southern end of the warehouse area.

M - This will be at the far far northeast corner of the map, you will have to go quite a ways for it, but its not too badly hidden, pretty much when you get to the very northeast corner, jump and you should see it.

G - This is on the horizon to the west (sort of hard to see), head to the far north wall and to look to the west and look at the mountain in the horizon. The only way I got this was using the Energy Gun that was available at the start of the mission.