Sign up for elite, it doesn't even have to be the paid version, on xbox or ps3 just download the elite app and run it and it'll save you a lot of time signing up via PC :)
To get the green title and skull emblem you will have to buy Call of Duty Elite then put in your account password and username. Then go on PSN and check your titles/emblems. To get the grey one with red skull just sign up and then go on PSN and check your title/emblem.
Kill Soap
It happens to be a title, not an emblem. You're supposed to get 25 kills with fragmentation grenades.
when you go to callsign go under titles and i think the title is on the 3rd page the emblem is on th2nd emblem page. as for the double xp it should tell you how many hours you have in the barracks section.
it is unlocked through prestige challenges and you have to get 100 kills in last stand,alongside this emblem you get a gold title that says 'The Stand'
You have to complete all of the weapon, perk, title, and emblem challenges legitimately.
you have to wait till cod elite is functioning better i just got mine and ive been a member since the beta
anything that you like, because its what you prefer, no what other likes, and in my opinion I would choose a gold skull title will be fine :), for emblem I like the nuke emblem, and you unlock it when you call in 10 nukes :)
You have to get 500 kills for the silver title, 1000 kills for the emblem (silver) 2500 kills for the White skull title, 250 headshots for the silver title with a headshot emblem in it, 1000 for the gold emblem or 2500 for the Gold skull emblem. This is for Submarine, Assault and Light Machine guns other weapons may vary but just look it up in the challenges section. Hope this helps :)
it gives you the ac130 title and the gold cross emblem from mw1
you must get mvp on team deathmatch if so u also get public enemy title
Not apart from a new title, emblem and the extra custom class slot