Kills are not the only way to acquire rewards. You also earn points toward your streaks by completing any objective in objective-based game modes, and for shooting down enemy air support.
Pointstreak Looping
If you earn your final Pointstreak, you immediately reset to your first reward – you don’t have to die to earn another streak reward!Spawn Protection
For five seconds after you respawn, you do not appear on the radar for controlled aerial Pointstreaks, and automatic Pointstreaks do not target you.Pointstreak Chains
Kills inflicted by your active Pointstreak rewards do count toward your next Pointstreak. For example, if you have your Assault Package set to (5)Predator – (7)Attack Helicopter – (9)Reaper, you can use the Predator to get two kills and immediately earn the chopper. Then, if the chopper gets two kills, you can immediately use the Reaper. However, note that your final Pointstreak never gives you points toward your next chain. Assault and Support rewards that are earned are kept, regardless of death. If you die before you can use it, you can still use it after you respawn. However, Pointstreak rewards used after you have died do not add to your next Pointstreak chain.There are Three Strike Packages:
Assault Streaks
Defensive – Oriented toward suppressing the enemy with powerful air support. Streaks reset if you die. All rewards must be earned within one life.
UAV
3 PointsShows enemies on the radar as red dots for 30 seconds. Enemies that have the Assassin perk equipped are not shown on the radar.
I.M.S.
5 PointsThe Intelligent Munitions System is automatically triggered once an enemy gets near it. It has 4 anti-personnel grenades that explode in the air.
Sentry Gun
5 PointsAirdrops a placeable Sentry Gun that automatically attacks enemies once deployed. Players using the Blind Eye perk won’t be attacked by Sentry Guns.
Attack Helicopter
7 PointsCalls in an Attack Helicopter that flies around the map and attacks enemies for a short while.
Reaper
9 PointsTake control of a Reaper-UAV and use it to launch 14 laser-guided missiles to the ground.
Assault Drone
10 PointsAirdrops an Assault Drone that you can control. The Assault Drone is equipped with a Light Machine Gun and a Rocket Launcher.
Pavelow
12 PointsHeavily armored assault helicopter that attacks enemies. The Pave Low is harder to destroy and packs a bigger punch than the regular Attack Helicopter.
Osprey Gunner
17 PointsBe the gunner of an Osprey that drops Care Packages. It’s pretty similar to the Chopper Gunner from Call of Duty: Modern Warfare 2.
Care Package
4 PointsThe Care Package is dropped to the battlefield and contains a random killstreak. The Care Package can be picked up by anyone, even the enemy…
Predator Missile
5 PointsAllows you to remote control one Predator Missile to the ground.
Precision Airstrike
6 PointsAllows you to call in a directional airstrike.
AH-6 Overwatch
9 PointsThe AH-6 Overwatch flies in and provides personal protection by following you and attacking enemies that you come across.
Strafe Run
9 PointsCalls in five helicopters to sweep the indicated area with massive firepower.
AC-130
12 PointsBe the gunner of an AC130 for 30 seconds. Use the 25mm, 45mm and 105mm guns to attack enemies.
Juggernaut
15 PointsReceive the Juggernaut suit, equipped with the M60E4 LMG and MP412 handgun. Lowers mobility, but makes you more resistant to damage.
Support Streaks
Offensive and Supportive – Providing rewards that benefit you and your team as a whole. Streaks do not reset if you die. Rewards can be earned over the course of multiple spawns.
UAV
4 PointsShows enemies on the radar as red dots for 30 seconds. Enemies that have the Assassin perk equipped are not shown on the radar.
BALLISTIC VESTS
5 PointsDrop a bag to the ground that supplies your teammates with Ballistic Vests. Every teammate that picks one up gets increased armor and damage resistance.
SAM TURRET
8 PointsAfter deployed, the SAM Turret automatically attacks enemy air support.
ADVANCED UAV
12 PointsReveals both the position of the enemy as well as the direction they are facing for a brief period of time. Enemies using the Assassin perk will not be detected by the AUAV.
STEALTH BOMBER
14 PointsCarpet bombs the selected area. Undetectable and can’t be shot down by the enemy.
JUGGERNAUT RECON
18 PointsReceive the Juggernaut suit, equipped with the USP .45 handgun and a Riot Shield. Lowers mobility, but makes you more resistant to damage.
COUNTER-UAV
5 PointsTemporarily disables enemy radar for 30 seconds.
AIRDROP TRAP
5 PointsDrops a rigged Care Package that explodes once the enemy tries to reach for its contents.
RECON DRONE
10 PointsControllable UAV helicopter. Use it to mark/tag enemies so your teammates can see them.
REMOTE SENTRY
12 PointsDeploy and manually control a Remote Turret. You can enter and exit the turret view at will, and also re-deploy the turret at any time.
EMP
18 PointsTemporarily disables enemy electronics and knocks out all enemy air support.
ESCORT AIRDROP
18 PointsAn AI controlled version of the Osprey Gunner killstreak. It drops Care Packages and also defends them.