Arena rank and Rampage LMG

I started playing the new rank arena and like any normal player I played the 10 games which determine your rank. I got silver 3 and when i actually started playing rank, I was being matched up with 20 bomb 4k people. Everyone was triple stacking and I was getting decimated. i played like 10 games and lost EVERY single one of them because the other players were not the same skill level as the game decided. Also the rampage LMG is ABSOLUTELY BROKEN no doubt in my mind it should be nerfed IMMEDIATELY. People are just camping far away and just shooting like there's no tomorrow. The damage on this is way toooooo much per shot. I played a good 4 hours today and without a doubt this has to be the WORST start to a season I've ever had. I can pretty much guarantee any casual player is going to agree with me.