PLZZ I NEED HELP!!

Hey guys!
I'm staff sergeant now and I wanna buy a good gun becuz mp5 sucks so
xm8, g36k, steyr, scar lite(20% chance of me gettin cuz already have on ma main), ak-47?
i got p!ssed when i saw tht u need to be staff 4th class and need 50k gp for xm8.
wht should i buy?
plz help!

scar lite or g36k one of those :P

No one using g36k it sucks. Scar/M4/K2/Xm8 is good

mp5 dont suck it how u use it