PM:
Troll: Any shotgun, really.
Tryhard: MP7
RM:
Troll: AK200 (Kobra) or pretty much any other laser wep.
Tryhard: Para / FG (Samire)
SR:
Troll: SVD Zebra (I would use Katana if I had it) / M40
Tryhard: PGM / M40 (yup, serves both) (would use FR if I had it)
Posted with MPGH Android app! Thanks Dave!