Mk48 is flat damage like the SCAR. 3 hit kill from anywhere on the map. And still a one hit kill with a silencer in hardcore. That's why I like it. Target finder, foregrip, and either FMJ or stock. I use FMJ and on the map slums, I just head glitch and hardscope the doorway of the bar next to B dom. Nobody gets through. And if they try to back away, I get the kill shot through the wall.
Easily one of the cheapest things I do. But if my team can hold the line at the fountain area, that bar is locked down and they're spawn trapped. And spawn trapping is what it's all about in domination.
And ewwww, the SMAW doesn't do it for me. Yeah it can lock on to air support, but it doesn't kill people very well. Maybe in hardcore it would. I put the RPG on a class and that's kinda fun.