Practically all Call of Duty games had a reward system that would assist you and your team on achieving kills. Based on your killing or scoring streak, you can unlock special abilities such as a UAV, airtstick, a special weapon, etc. Known Scorestreaks include:
- UAV
- Orbital Care Package
- Remote Turret
- XS1 Vulcan
- Bombing Run
- Warbird
- XS1 Goliath
- Paladin
- Missile Strike
- Aerial Assault Drone
- Aerial Recon Drone
- System Hack
- DNA Bomb
