Knowing the loc_ent of your teammates should be enough to tell whether the base is safe or not. We don't want a red centered text saying "The reactor needs protection !!!".
I did not test the team overlay (I did not open trem in the last ... 6 months

, school) but telling from the screenshot I think it would be better stuck to the edge with an ever smaller font (a quarter of the screen is way too much for a team overlay), that's hud work.
Possible improvements would be to hide the teamoverlay when there's action (need a metric for this...) or the ability to show/hide informations other than the health (useful in a fight).
Although superpie's mockup is very nice/well designed etc ... (btw we can see it is a basi, no need to put it twice

) I feel that having these billboards all around the screen will take more "space" than the teamoverlay. And it is not immersive at all.