We all don't like it when all the marines are randomly running around the map with SGs and dying to gorges, right? We (commanders) want them to be in a group preferably, sieging a hive or something.
But there can be such a thing as too much teamwork. You might have the entire team stationed in one location, sieging or taking down res nodes or something. Especially sieging: you would want one person to not go to the siege location, but instead, take out their nodes. Aliens are not going to respond to "resource tower is under attack" calls while their hive is dying. There will be absolutely no defence for any res tower. except maybe OCs. Other than that, you can completely freely take down their nodes. I usually am the one running around and taking down their nodes; the commander loves it, because the aliens, after a siege (successful or not), end up having to rebuild all of their RTs.
Rambos for the win! But keep in mind, most of you should be staying with the team. Only one person should be taking down RTs - preferably with a shotgun, it is quite a bit faster.
Off I go!