Assassins Creed Rogue challenge

I'm having trouble doing the challenge where you need to disarm 3 agile guards and kill them with their weapon. When I disable the guard he just drops the knife. How do I do the challenge?

:)

 

Assassin’s Creed: Rogue Remastered (march 2018)

Assassin's Creed Rogue Remastered Coming March 20 to PS4 and Xbox One

 

Assassin's Creed Rogue Remastered announced for Xbox One

UbiSoft is re-releasing Assassin's Creed Rogue for Xbox One as "Assassin's Creed Rogue Remastered" on 20 March 2018
This will include two bonus missions from the 360 version.

Assassin's Creed Rogue Remastered

 

other ac games give you the option to pickup a dropped weapon then use it

 

j'ai un problème avec mon jeux ac rogue quand je commence a jouer j'entends plus les voix des personnage mais ke de l'environnement. j'ai regarder dans les options mais tous est a fonds et quand j'ai voulu voir mon cd pour voir le problème. mon cd avait
été rayé tous autour donc comment je fait? merci d'avance.

 

Rick from Walking Dead? Cool.

To do this challenge you just need to be unarmed, select the fist icon in the weapons menu. Counter an Agile's attack "X" and then disarm "A" and the fist in the weapons menu will be a throwing knife. Throw the knife at the Agile you disarmed... rinse, repeat
X5... and the jobs a good 'un.