I'm not one to let a perfectly good thread go to waste, so let's give this one another whirl.
MWLL concepts that don't work :
BAP and GECM as long-range devices.
Yes, that's right. ECM and ECCM should be a battle to themselves, not an individual perk. GECM units should be struggling to get in close to the enemy to disable their NARCs, TAGs, increase lock-on times, and fiddle with weaker sensor systems. BAP units should be scurrying to counter them and point out their location. This equipment should not make these units more independent, but give them a potential role.
Have GECM units that are blocking functionality of other units get points. Have BAP units that are blocking GECM functionality get points, too.
Replace the current BAP and GECM system with specially rated sensor packages and a version of stealth armor that reduces the radar detection range, something like the current GECM but less powerful. Perhaps without the complete invisibility granted once radar is turned passive.