(I apologize for the video recording. I recently reinstalled my OS and it messed my OBS settings.)
Intentional Team Kill. It happens at about 47:15.
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Let me try and give some context to the video.
41:37 - I get killed by an enemy.
42:25 - I get killed by the same enemy.
43:55 - 44:08 - I write on the chat I plan on placing a Claymore and where.
45:07 - Another reminder about the Claymore.
46:42 - Teamkill alert message.
46:46 - I should have apologized, but looks like I had a brainfart. Normally I do when I accidentally teamkill people, but this time I forgot.
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Yes, I understand Claymores can be dangerous in Hardcore, and that's why I tried to warn a few times where it was located; and I also understand they're my responsibility.
The reason why I placed that Claymore is because I was trying to laser enemy vehicles from the C rooftop without having enemy players coming up there and killing me.
In any case, it doesn't justify his retaliatory teamkill.