Multiplayer Streak Bonuses
Streak bonuses only go into effect after you've obtained a streak in the session. The two types of streaks are kill streaks and loss streaks. Kill streaks are when you kill a series of targets in a row and loss streaks are when you have a series of lost contracts in a row. There are two slots in your Profile Sets, one for each type of streak, and there are eight streak bonuses available through leveling.
Streak Bonus +100

Kill streak bonus
Awarded when they player reaches level 5. This bonus is applied once you have killed three targets in any manner. The bonus adds an additional 100 points to your score for each successive kill until you lose a contract.
Streak Bonus +300

Silent kill streak bonus
Awarded when they player reaches level 13. This bonus is applied once you have killed three targets silently (you will see the Silent score). The bonus adds an additional 300 points to each successive silent kill until you lose a contract or kill a target without the Silent bonus.
Streak Bonus +250
Kill streak bonus
Awarded when they player reaches level 18. This bonus is applied once you have killed five targets in any manner. The bonus adds an additional 250 points to your score for each successive kill until you lose a contract.
Streak Bonus +750
Silent kill streak bonus
Awarded when they player reaches level 31. This bonus is applied once you have killed five targets silently (you will see the Silent score). The bonus adds an additional 750 points to each successive silent kill until you lose a contract or kill a target without the Silent bonus.
Extra Sensitivity

Loss streak bonus
Awarded when they player reaches level 4. This bonus will increase the precision of your compass until you make a kill.
Reset Cooldowns

Loss streak ability
Awarded when the player reaches level 9. This ability will enable cooldowns to reset after every death and it will be applied after three contracts are lost in a row. It is extremely useful in manhunt and alliance mode as the players being hunted will respawn with their abilities avaliable from the start.
Score x 2
Loss streak ability
Awarded when the player reaches level 17. This ability will double the points acquired in the next contract and it will be apllied after five contracts are lost in a row.
Boost Cooldowns
Loss streak ability
Awarded when the player reaches level 28. This ability cooldown times by 3 until next kill. This ability is activated after five contracts are lost in a row.