I reached lvl 70 in COD MD2, i dont want to prestige, tell me how not to!?

i reached lvl 70, and i got my AK-47 and i was having fun and then at the end of the round i earned 3k xp, and then my progress bar rose. I DONT want to prestige just yet. Please tell me wat im am going to get when i get past the lvl 70 bar, because i dont want to presige, and then tell me wat do i do when i want to prestige. THANKS! also if u want my gamer tag, just ask