Why does the same weapon work better for enemies?

It fells like even respawn themselves are just emphasising the message that they want a gap between the "good" and so called " competitive players" total lie btw for the most part. And the bad or casual players are being pushed aside and to the bottom of the pack where not even the game which is supposed to be unbiased, works against you to keep you there. I'm getting sick of game after game of this now. Its getting more frustrating than fun, but I can't take a break for a few days to a week because as soon as I get back, either a new strategy is made which is used almost immediately against me, or the same types of players from before just torment me and other lower-level/ average players like me over and over again.