You can already get that, to varying degrees depending on whether you're actually in a team or just a spec.
If you are a spec:
quote: unlike a spec, can only see what is in the team's LOS |
Try /specfullview as a spec.
If you are a part if the team:
quote: constantly share all of his resources (possibly custom widget needed) |
Default engine functionality, there was a / command for that.
Such team-spec functionality also used to be built-in into ZK (you could choose not to get any units and anything) but has been removed. It probably shouldn't be hard to reinstate it, but you get more or less the same effect when you share all your stuff away anyway.
As a side note, the team's planes player is often supposed to have the map awareness that a team-spec would.