I my opinion every "advanced" gamer has his own favourite class. And weapons like the FAL or SMR are hard to handle. So if you do not like them, do not ust them! Do not us weapons you don't like! Just a tip from myself.
I also recommen by myself to use ghost. I know that ghost is probably the most useless perk in the game, because it only protects for UAV... But yeah. I just dont like the feel when someone is seeing permament on his minimap. That's just an awful feeling. So i keep using Ghost! Don't care what other people say. Most of the people which complain about ghost are just annoyed and pissed off that we're using it...
But anyway, that's my class setup:
AR-Class:
Weapon: M8A1 (red dot and fast mags)
1. Perk(s): Ghost, Hardliner (sometimes instead of Hardliner Flak jacket)
2. Perk: Scavenger
3. Perk: Extreme Conditioning
Most important thing is C4! (I think i dont have to tell you guys why...
)
Smoke granade
MP-Class:
Weapon: VK10 (Surrrrpresor and fast mags)
1. Perk(s): Lightweight, Hardliner
2. Perk: Scavenger
3. Perk: Extrem Conditioning or Dexterity (or if you want both)
C4, smoke granade
I highly recommen you to use Extrem Conditioning or Dexterity in a MP- Class because, i think, everything other is useless...
I know i've may wrote somehting wrong, but i really don't want to read the entire text again...