MSMC and Scar-H are my personal choices thus far
I've yet to unlock the scorpion and actually make my own class with it so this could alter my opinion. The MSMC reminds me a lot of the AK74u from black ops. Other SMGs hold an advantage up close, but this gun does the best of any SMGs in mid range gunfights.
I've only played 2 games with the scar, but 28-9 and 34-10 were pretty solid. I just like the damage the gun does at this point. The M27 and Type 25 just don't drop guys as fast as this gun. After messing around with the An94 in league play, I may end up liking that gun more, but for now in a big fan of the scar.
What guns do you like this far?
The vector and skorp evo are currently resting as my fave SMGs, as for ARs the swat is pretty decent and the LMG can't go wrong with the LSAT. Score streaks it's a toss up between the guardian and the hunter killer.
Been using the first 2 SMG's, for scorestreaks try the warthog, it is a massacre maker, anything in the open is dead, it can take out the whole enemy team more than once
It would be great to be able to tell you what my favourite set-ups are but seeing as I can't even get in a game I have no frigging idea.
Activision, sort yourselves out!
The only reason i know whats good is because i could play combat training yesterday while the servers were out, good way to get a handle on the maps, weapons and streaks
I can't say much about other guns, because I only use the MTAR ... by far my favorite, its amazing! I use the red dot reflex sight with the fore grip.