This game plays quite differently from many shooters out there. Run and gun is usually a big mistake. Picking the right weapon can make all the difference in the campaign but what about multiplayer.
What weapons do you use most in Graw?
I love the MR-C - light weight, 50 round magazine, high rate of fire with decent accuracy. Downside is it can be a little hard to control compared to other infantry rifles but for an automatic rifleman it takes some beating.
I've found the scope is best used in a prone position behind some good cover. Preferably with some good distance between you and the enemy
Up close I find it's good to crouch and maintain covering fire while going for the kill shot.