I abhor the idea of increasing alliance sizes. 50 person teams are already enormous and stupid. Multiply it by 20 and you have a 1000 person group to organize.
I had an idea about limiting the number of teams allowed at a castle to 12. 5 slots are guaranteed for the owner and their 5TA. The other 7 are wildcards meaning your enemy can bring 7 teams to fight you, theoretically increasing the likelihood of winning the fight and taking the castle, but also allowing the defenders to bring I outside help if they are quick enough which either makes it a 6v6 or shifts the odds in their favor as far as numbers go. It could probably be abused but I’m not sure on the severity. Open to analysis and counterarguments.
I would also like atlas to be slightly in favor of the aggressor but have the tangible losses reduced to account for this. I’m probably stepping out of my lane as I’m a noob who isn’t cogniscient of the goings on in T4 and T5 land, but if losing those castles wasn’t so punishing, teams may not send lambs to the slaughter so mercilessly. They may be more inclined to regroup and counterattack. Again, open to analysis and counterarguments.