I'm asked about my load out a lot.
Primary is the one and only - Mar 10 with LRPS scope. Always supressed unless It's a HQ Defense. My Bergen pack is stuffed with magazines, I carry 38+ the loaded 10. My kit is specifically chosen to eliminate personal only. I have found that using the suppressor allows you to wipe out a crew of 4-10 @300M+ without them getting a shot on you. Unsupressed with a lot of experiments I have found that it will shorten their counter response time. In a similar scenario, I'll pop 3 of them before they start shooting back at you.
I almost always run around with thermals.
At least 85% of the time it takes 1 round to kill an enemy.
In my opinion, this is the best kit if you enjoy just running and takin down infanty.