You wonder why you show significantly better statistics in Call of Duty: Black Ops 4 than in its predecessor? The developer Treyarch has accomplished this with a trick that has also been seen in Destiny 2.
You have mysteriously become a CoD pro? If you play significantly better in Black Ops 4 than in the predecessors (without abusing gestures), you have to be disappointed now. Because it is not because you suddenly got significantly better, but how Treyarch calculates K/D.
Assists are now kills: As Polygon writes, the calculation formula for K/D in Black Ops 4 has been changed. Now assists also count as “kills”. To improve your statistics, you just need to hit opponents, it doesn’t matter who lands the last shot.
If you had problems reaching a K/D of 1.0 before, this should now be significantly easier.

Role model Destiny 2? Also Destiny 2 has introduced this system, although it does not call it K/D, but efficiency. Just like in Call of Duty: Black Ops 4, efficiency is calculated with (kills + assists) / deaths. We are not talking about K/D here, but KA/D.
Why did Treyarch change the system? The magical number 1.0 has always been regarded as the yardstick for an average player in terms of K/D. Those who play significantly below this value can quickly become frustrated. The feeling of finishing games with a K/D of 0.3 can be quite demoralizing.

It is primarily a motivational boost for players who have had difficulty being competitive in the past.
The problem is: the new calculation method will ensure that the understanding of what constitutes an “average player” will shift upwards. Instead of 1.0, a “K/D” of 1.3 or 1.5 could then be considered the new standard.
What do you think of this system? Do you find the change meaningful?
Already seen? CoD: Black Ops 4 even has a splitscreen mode (also for Blackout)!