3rd person takedowns don't work in 2042 and are buggy at best, they also really only work in my experience if an enemy isn't moving at all and is standing up facing 180 degrees in the opposite direction. I have tried reporting it as a bug and don't really get any response. but I don't think anyone has. I never heard anyone complain about 1st person takedowns, they worked better and looked cooler and added to the immersion. again, I don't know what is happening to Battlefield, but it isn't good.
please, DICE, EA, whoever just fix this. battlefield one was one of the best in my opinion after all the bugs were fixed, why has every Battlefield since felt like they just don't care