Finally got around to fixing the EnergyCore problem for my map, thought I'd share the code with you.
The problem: When the energycore objective (Hellbender engine) isn't the first objective, it still shows on the HUD.
Follow the instructions in there if you're using a Hellbender engine objective and want to fix that problem.
Tested online and offline.
UPDATE: Added a TeamNetworkTrigger to get different events to trigger based on team colors, for instance a blue explosion for the blue team and red for red.
UPDATE: Updated the EnergyCore objective to work with the 3355 patch.