I'm thinking of adding little flying probe units the use the DefenseAI (follows other units).
These units will support others with multiple tasks by providing buffs. Or point defence if I can get it working or wait till the next update for Mindustry.

So far there are two lists of names, one in angelic names and security names.

THESE UNITS MIGHT NOT ATTACK DIRECTLY

Angelic: remember there are five tiers

• Seraphim
  
• Cherubim
  
• Thrones
  
• Domination
  
• Principality
  
• Power
  
• Virtue
  
• Archangel
  
• Angel

Security: remember there are five tiers

• Sentinel
  
• Keeper
  
• Warden
  
• Sheriff
  
• Picket
  
• Sentry
  
• Guard
  
• Minder (this one is mostly going to be one of them)
  
• Custodian

just don't spam suggestions. For my own and everyone's sanity.