The tactical knife is a knife attachment that you can use to knife twice as fast.
the best class is vector with rapid fire usp with tac knife tac insersion stun granade. marathon lightwieght camando.
iDanceWithKnives
No
kill 250 people with melee (knife, tactical knife)
Blackhawk Serrated Tatang
u have to knife somebody who has std as their title.
get 50 knife kills
tactical knife on a pistol. You can get it by getting I think 50 kills with that certain pistol.
Knife S W A T1
hurt someone and then finish them of with a throwing knife
As the knife isn't listed as either a weapon or equipment in the challenges, there is no way of telling.
1000 kills with it ,tactical knife doesn't count.