Here’s a couple things that could balance the gamemode and make it a little better.
-Remove the ability to Spawn vehicles in the Fortress for Red Team on Summit, as this means they can literally just spawn inside the base with a vehicle and buy way too much time with defense, repeatedly.
-Add a rock ramp to the other side of the Spire in Array, so the attackers can enter from both sides. Additionally, open up the cave to the Beach and allow attackers to have another flanking route towards the Armory, as the defenders usually win on the Armory and Spire stages far more than the attackers do.
-Slow down marine respawn rate inside the home bases during the core defense stage