Tactical Mask Pro Nova Gas Glitch.

Hello, I thought i needed to say something.

I don't know if it was boosting or not (only about 5 kills) but yes, i did kill someone else, on purpose, and if it is, sorry, but this needs to be addressed, There is a Glitch with the Tactical Mask Pro challenge.

Specifically, the Nova Gas.

I throw the gas at the player, he takes hit markers, i kill him, no credit.

I throw the gas at the player, hitting him with the canister, kill him, no credit.

I throw the gas and the player walks in to it, i kill him, no credit.

I tried everything, is there something i'm missing? did i read it incorrectly? is it bugged?

I need closure.

Best Regards.