COD kill streaks

Achieve kill streaks for extra abilities
3 - UAV (see enemies through walls)
5 - speed boost (2x speed for 5 sec)
7 - damage boost (1.5x damage for 5 sec)
9 - supply drop (immediately uses one random kill streak other than the nuke)
12 - Torb turret
15 - air strike (call in a bastion ult at your location)
20 - attack helicopter (two words; flying bastion)
25 - tactical nuke (kills all enemy players)
press interact to use current kill streak
current kill streak can be seen in the top left of your screen