Some good points. I like all the Crucible posts giving advice as I always learn something. I would say the key is learning how and where to engage 1v1s to ensure you are not 1v2 or 1v3. Good teams pair up or run in 3s to ensure they are 2v1 or 3v1 in most gun fights. That is how they gain control of the map. So while your points are great for drop in Crucible, when playing as a team vs other teams there really shouldn't be sheep at all.