Thank you, and you nailed the biggest problem! Leaving upgraded turrets behind really felt bad, so the net has no turrets anymore. It is a living virus now: the nodes latch onto the firewall and eat through it, and anything that shoots sits at the core as a spine turret that moves with you. Your upgrades stay with you for the whole run. The new version is live in the browser now, I would love to hear if it feels better.