Actually, Bungie made a little thing to make getting skulls easier! You dont even have to beat the level with it, you just grab it, pause the game then save and quit (read it off of CCG :3). It says you got it, and thats how I have 9 skulls

what the heck are these man there not usefull

Actually they are, collecting all 13 gets you free armor

Here are some skulls not mentioned above (dont forget, you must be on normal or higher in order to collect skulls). Blind skull- Found in Sierra 117. When activated your gun, aimer, and pretty much everything on your screen dissapears. To find this skull, proceed through the level as you normally would. After the first phantom departures, head to the right. Walk along the ledge until you see a large rock below. Drop on that, and the skull lies on the edge. Thunderstorm skull- Found in The Covenant. When activated, enemies get a field promotion. Progress through and disable the tower. When the hornets drop, take one and fly towards the second tower (the one arbiter and the elites disabled). There is a small walk way if you land and go up, so go there and grab this skull. There is also a terminal here right next to a locked door. I will post more soon!

please please have you got a good way of getting the cach scull i have got 12 sculls and i would realy like the rest of the Heyabusa armour please please help p.s.thanks for the 3 skulls

If any body needs help add me as a friend request. I have all the skulls plus almost all armour. Gamertag: Venom Bites