Great OP!
Clarification of the confusion caused by later posts which intel is transmitted to your teammates:
Teammates, that do not have sensor contact themself, can only see units you or other teammember have targeted (default R key) atm on their HUD and minimap alike. So you should target them all shortly if you want to show your team there i s more then one mech in a certain position they do not have line of sight to to.
There is no auto transmitting of all your sensor contacts that you have not targeted atm.
Furthermore a targeted unit´s target info is avaliable to all teammmembers.
ECM (either being in the "bubble" or having to transmit through the "bubble") prevents all data transmitions and you will get no info at all from teammates through it
An empty red trinagle over the head of a enemy unit shows a target in your own sensor range that is not targeted by anyone else.
A filled red Triangle indicates a target in either your sensor range or a transmitted target that is targetted by at least one of your teammmates.
Edited by Nebelfeuer, 20 May 2013 - 02:27 AM.