Which modes are you guys playing the most? I haven't played for a long time, but when I did, I'd switch between a couple of load-outs. Most the of time it had to do with what kind of mode, map & what I needed to do.
In general, I believe Wraith *glitching* is the hotness nowadays. That would be the scrub tactic you are looking for. Jump around like a retard while winding up and shield stuff. Also, remember that the Hedgehog is GOD. If you are going to die in a CQB situation, toss one of those down close to you & you'll get the guy that out-guessed you and/or had more skill. Thanks, IG!
Marksman, huh? You always get to spawn with a secondary (thanks again, IG!) so you can get that going for some tick damage or just to know where the enemy ducked back to & how they are moving. Close up, send the SPARKLE & then you can hip-fire two bursts & it should be game over. Far away, zoom for headshots.
Sniping is hella easy in this game. If you get good at it, HS's for days.
But gyeah, I was mostly rocking the Carbine.