Build a skuttle next to an enemy com - tolololololo !!!!
Not such specialized units?
* Build a whatever next to an arti com.
* Instant build the perfect counters - right in the battlefield.
* Instant build AA / Shields if your air player scout a licho.
Only scouts/raiders/arti?
Defender spam against LLTs and flea spam the rest.
One flea+defender kill the defenders of your enemies.
Instant build hammers against defenders.
Only short range / slow units?
Why do you forget the skills of a lazarus device?
Get units or defense - whatever you want.
Don't pay metal and have units around your com.
Don't make such threads :D
Have a nice game ....