So first of all, if you've got all 4 nodes near you, obviously the 2 other GCs will come at you. Did you really expect to defend 4 nodes? You shouldn't have even attempted to defend against the adders, you are costing your team 1 person at a node that's actually defensible. When all the nodes pop near you, the best thing to do is all 24 retreat to 1 node. Not even 2, just 1. Then you can decide to hold and weather the storm, or push for a 2nd node.

Also, why not communicate with your alliance, tell them you're getting camped and to pull back, and tell people not to jump off the base camp until the enemy alliances leave? The GC closer to the base you are fighting at already has an intrinsic advantage, which is faster reinforcements.

And the holmgang thing? Come on, if they managed to holmgang you several times, that's teamwork and co-ordination. I mean why don't we make it so that each person can only be attacked by 1 other person while we're at it then?

No offense, but I feel like the issues here can just be solved with "git gud". If you felt the enemy's strategy was so effective, you're free to do it to them next match.