But ODST does hit back thanks to it's co-op campaign gameplay, allowing you and up to 3 other friends to battle the Covenent, the
wierd thing is that the story tell you that you're a lone Trooper in hostile territory and never explains where 3 other ODST's amazingly appear from, it's the same in flashback missions it's never explained
how these people got here or why they are carbon copies of the main characters.