Halo 3 skull question?

[Blkah]

I am doing the achivment for halo were you have to get 15,000 points in the whole level and i was wondering what skull makes you have more points when activated?
(Halo 3) Last level halo

 

[Weredude]

i don't think there is one

 

[iluvpandas]

there no skull that gives you more points its just the ammount of skulls not including the gold ones or plat ones w/e. ( the party one and the others) you need 4 skulls activated and be on normal and dont die onces to get the achievement by yourself.