Call of duty world at war multiplayer advice?

So I play online on wii for COD 5 and I want toi know which weaspon set up is the best. Like best weapon, perks, and grenades. Right now im level 58 so i have the ppsh so right now my set is. PPSH and MP40. Martyrodom or something. And more ammunition. And if you're curious and want to add me email me your friend code mine screenname is Ginn. Thanks