Originally posted by Dopey
I meant easier and faster because the time it takes to get 1 kill, exit match, start new match, you could easily get 10+ kills in that time with an AR + breath.
He just backed out for demonstration purposes, all you need to do is hold down L3 every time you shoot at and kill someone whether you use an SMG, an AR or hardscope with a sniper to get Marksman Pro is up to you... basically you don't need a gun with a scope or the breath proficiency to complete the marksman challenges.