Infection Bug?

So I was playing as a survivor on a matchmaking game of infection. It was round 2 and I was hiding in the corner. An infected ran past and I managed to perform an assination on him. After the assination I was able to pick of the infected’s sword and use it to make at least one kill. Am I supposed to be able to do that or is that a bug? I have a recording of it that I will be uploading later.

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> So I was playing as a survivor on a matchmaking game of infection. It was round 2 and I was hiding in the corner. An infected ran past and I managed to perform an assination on him. After the assination I was able to pick of the infected’s sword and use it to make at least one kill. Am I supposed to be able to do that or is that a bug? I have a recording of it that I will be uploading later.

this has been happening consistanly, i dont think it is a bug, plus i dont see any true benefit to having the sword really is past te small speed boost it gives you.