Combat arms gun choosing?

ight guys im thinking of getting the l85a1mod. it has a really good amazing scope and is usualy a 3 shot kill even at sniping distance. however ive seen the m16cqb in action. u can go full out when sniping cuz it has literally no recoil and f rof. aka rate of fire. they can both serve as ault rifles as well as snipers but i think im gona get the l85a1mod as primary and put either a good sniper (osk) or the m16cqb in my bakpak. whats ur opinion?