Scar-H and ACR. Scar because it has a ton of damage, pretty good at all ranges, and solid iron sights so yuo can use something more useful like FMJ for silencers. Only down side to Scar is it's small clip which can easily be fixed by extended mags or stopping power. ACR because it has like no recoil and does a pretty decent amount of damage with stopping power. Also has pretty solid iron sights.