Sometimes I REALLY hate care packages...
http://youtu.be/mGBrBHONG_s
-_-
You know you can retrieve those with Black Hat, right?
I had one fall
OFF THE CLIFF AND INTO THE OCEAN in the Yemen map and I WAS ABLE TO GET IT BACK.
If you don't like carrying a Black Hat or two around (you should) you can have a backup class with Black Hat just for getting the package back. Just kill yourself and go back to get it if it was something good.
I feel your pain. I got so close on the SWAT last night. 2 double kills and 1 bloodthirsty away...
When it comes to LMGs, SMGs, and ARs:
Headshot camos = use laser sight and aim slightly higher than you normally would. I find FFA and Multi Team modes to be the best because there are less (or no) people on your team and plenty of opposing players. I find the headshot camos to be the most annoying because they can take upwards of a third of a single prestige. Somewhat luck dependent.
Double kills = Ground War and other objective game modes are the best gametype for this. People bunch up around flags and dog tags.
No perk camo = Use primary gunfighter. Doesn't count as a perk. You can load up on lethals and tacticals as well and ditch the laser sight if you prefer finally ADSing.
No attachments = Really easy. Perks are stronger than attachments. Use the three Greeds + 6 perks + your gun.
Revenge kills = You'll get this gradually over time. Hard to really strive for this camo. FFA will maximize your chances though.
Bloodthirsty = FFA is absolutely the best for this. Unless you get put into a lobby with really good players (and that does happen) you should be able to get 5 kill streaks in no time. Remember to
keep moving (I recommend Fast Mags, Ghost, Engineer, and Lightweight for FFA), and in FFA knowing your spawns is absolutely imperative. Don't just turn around after you kill somebody. Turn around and
head in that direction too. Take a small portion of the map and make laps around it. That way you're securing an area while not staying in the same spot either.
Getting 5 kill streaks that way is more common and less nerve-wracking than getting 1 or 2 and sitting in a building or moving around corners not knowing where the enemy is.