In my layout, I have 2 code gates out of a series of 3 that my AI Beetle can reach. The code gate filter allows them to take less damage allowing the Beetle to come in and regen firewall. I have found this strategy works as long as your code gates dont get wraith'd in stealth. It makes the attacker either eat up a lot of time or their damage is not sufficient to overcome the AI beetle's regen and it shuts them down.
What are your thoughts on this strategy? Is there a more effective use for these nodes?
Thanks for the imput

