Yes, if you start from one of the rally point things it won't count, even if you have already finished the section before it.
Make sure you start at the start of the level and please make sure you haven't already unlocked it. Turbo-117
to get the achievement you have to play it on normall dificulty or above and start from the begining of the mission not the check points
If you don't start the level from the beginning the skull won't appear. If you did start from the beginning i don't know.
No but to find the skull in that level you must start from the beginning of the level and be on either normal,heroic or legendary.
Well i think not but maybe in the future when I get to a higher level...
Start from beginning to end
Start at the beginning, play through to the end.
No, you don't. You do, however, have to play the game above easy mode and must start the level from the beginning (You can't start at a save point or checkpoint).
You have to start from the beginning of the level and when you use the grav lift, it's on the fourth, top, floor in the hallway after the room with all of the exploding crates.
in the achievement were in for some chop on halo 3 you do not get scout shoulders, sorry
No, but it is near the beginning of the halo story
Normal, heroic, or legendary. I found a two skulls on easy, but I didn't get an achievement.