Yes, there are better ways to drain shields, but 1/2 drained shields quickly die to 3-4 Impalers so bring in a tremor or 3-4 firewalkers + 3-4 Impalers and even a 5-6 shield covered proc. base will die at no loss to the attacker whereas the same metal in assault, skirmisher, or raider units will just die to the proc.
This game is heavily geared toward mobile units. Static defense (proc.) is for when a team is trying to buy time or in a bad skill match-up and then also just to buy time. Lotus turrets usually are the only proc. high level players will build.
