Hi there

In my opinion Scar since 27 LVL is a great mistake, either to choose it in Beta was a big mistake already, a lot of guys complain that Scarab due to its recoil is a bad weapon

Also begginers should have a fair start, now is not as scarab is a lot worst that Scar, Fy71 or Typhoon, so for now is an unfair adventage

Scar or FY71 should be avalaible from the beggining, scar was in C2

"leveling" and unlockable gear in MP is and always has been a terrible idea. Not only are new players at a disadvantage from being less experienced but they have inferior weaponry as well, and leveled perks into the mix as well and it's a completely uneven playing field for anyone who doesn't have/doesn't want to spend all day playing in order to get the gear so that they can have a "fair" game.

There are tons of ways to unlock gear, without participating in cut-throat competitive game modes. Play more Hunter or Cell vs Unarmed Nanosuits.
There are servers that limit maximum rank for entrance. Google them, play at your level.

Besides, I can say that some of the best weapons, in my opinion, unlock very quickly. Typhoon, Predator bow, Alpha Jackal.

Of course, if you jump straight into deathmatch, you will be rendered into dust. What do you expect? Every shooter is like that - with or without perks.