Thank you.
If you decide to run assault/ medic try the m416 deff a solid weapon ummmm carbines the acr-w is favored as well
Assault: AK-12, M416 and AUG A3
Engineer: P90, CZ 3A1 and MP7
Support: MG4, M249 and M60
Recon: SCOUT-ELITE, M98B and 338-Recon
Carbines: AK-5C, MTAR-21 and ACE-21
Shotguns: 870-MC, Spas-12 and Hawk 12G
DMR: they are all terrible
Pistols: M1911, 93R and M9
Give those a try. Hope those suit your playstyle
Which would you put top of the list and why?
I’d say: finish the SP campaign and let the P90 person do whatever it takes so you unlock it for MP.
That gun is crazy good in the right hands (and in the wrong hands, you got 51 bullets to become better before you need to reload).
Also: play with the Support class until you have at least 3000 points so you can unlock shotguns; then: grab the QBS-09, a Squad DM map and say hello to your next ten ranks.
Thanks.
I would do campaign but I do 2 missions then stop and when I revisit it I have to start all over again as progress is lost. 
Its not! It saved it for me. Though, it is true that if you progress on “Easy” and then switch to “Hard”, your level progress will reset.
My whole campaign resets, its happened 3 times now.
Why are DMR terrible? I havent unlocked Them yet, but was aiming for mk11
I know what you mean, I was really disappointed them. Very inaccurate after the first shot and takes a few to bring a man down.
I would do but my campaign always losses progress and there is no way I could do it in one sitting.
The sg553 is a great gun that you unlock early on. That or m416
Dont they have higher DMG and work medium to long range?
As opposed to carbine which is short-medium range, and PDW which is short range?