Modern warfare 3 strike package details

Assault Tier

4 Kills – Care Package
5 Kills – IMS – 3 or 4 placeable landmines that cannot be stunned or flashed
5 Kills – Predator Missile
5 Kills – Sentry Gun
6 Kills – Precision Airstrike
7 Kills – Attack Helicopter
7 Kills – Little Bird Flock – Mini Helicopters which patrol the map
9 Kills – Little Bird Guard – Big Helicopter that follows you from above and protects you
9 Kills – Mortar team –  5 predator missiles – all go off at the same time in different places
10 Kills – Talcon – Mini Tank Robot
12 Kills – AC130 (We cheer!)
12 Kills – Pavelow
15 Kills – Juggernaut Suit
15 Kills – Osprey Gunner Cps – You control a chopper gunner that also drops an emergency airdrop for your team mates.

 Support Tier

4 Kills – UAV
5 Kills – Counter UAV
5 Kills – Ballistic Duffel – Drop Juggernaught perk for the whole team, not jugg suit
5 Kills – Airdrop Trap – Drops a hacked care package
8 Kills – Sam Turret
10 Kills – Remote [Missile] UAV – Target enemies with missiles
12 Kills – Advanced UAV – Blackbird

12 Kills – Remote Turret – Sentry Gun that you can control
12 Kills – Stealth Bomber
18 Kills – EMP
18 Kills – Juggernaught Recon Armour – Care Package Drop Armour
18 Kills – Escort Airdrop – Same as the Osprey Gunner but you dont control the gunner or chopper and Drops 5 care packages, one will be hacked

Specialist Tier

2 Kills – You get 1 extra perk
4 Kills – Get another perk
6 Kills – Get another perk

Other stuff