Which Strike Package to use

So I have been looking around at many of the elite members' classes and have one concern: the appropriate Strike packages. The Specialist package should mostly be used when playing TDM or KC and playing fairly aggressive. The extra perks allow you to be almost like a tank while running around and raping people. The Assault package is excellent for most object oriented games like domination or capture-the-flag. The killstreaks/air-support gives your team the maximum advantage. The Support package is best for (humorously) support classes. If you are playing a class like a riot shield or anti-aircraft class, or are leveling up a gun and not having much luck killing players, stick with this.
Besides going through the Strike packages, I also wanted to show two classes that i see throughout most of the top players and I think our clan can utilize greatly.

This first class is my overall favorite in any situation.
Primary: G36C-Kick-Red Dot
Secondary: FMG90-Akimbo (Standard throughout most classes with stead aim)
Semtex
Flash
Perk 1: Sleight of Hand (if I go on a streak I am usually picking up guns off the ground)
Perk 2: Assassin (standard)
Perk 3: Stead aim (standard : gives great advantage in close-quarters combat)
Strike Package: Assault (killstreaks based on which game-type and proficiency of opponents)
This class has great variety and when the perks are Pro it is a solid class.


This second class is highly aggressive and almost always results in a high K/D
Primary: PP90M1-2 Attachments- Silencer and Rapid Fire
Secondary: FMG90-Akimbo
Frag
Flash
Perk 1: Sleight of Hand or Extreme Conditioning
Perk 2: Assassin
Perk 3: Steady Aim
Strike Package: Specialist

Thanks for the Intel, I'm going to use your favorite class next time I play!