so i recently got acces to my bros x box ( this is the first time i ever had a video game lol ) and i been gooin super hard on the zombies when i cant ski and theres no homies or ladyfriends around. im playing black opps and the five level. i can never seem to get past round 4. I always get a reviive and i get the shotgun and the semiauto rifle thing. so whats the secret of getting past round 4? I know mad people that get to like round 9 easily and i cant beat round fucking 4