User blog comment:A Lonely Nomad/(OFFICIAL) The balancing issues Treyarch are taking against noob tubes/@comment-1405794-20100914040323/@comment-1405794-20100914042217

@Killerkitten, My definition of a noobtuber: A person who REPEATEDLY blasts targets in plain sight, not for a tactical use (i.e. clearing out rooms or large enemy groups). So basically, it depends on if he turned the corner completely or you somehow knew he was coming and noobtubed him, because if he didn't turn that corner, then it would be impossible to kill him with explosives.