Armada
Cortex
Pit Bull
The Pit Bull is a powerful defense turret sporting a heavy gauss cannon.
It is very strong in the early T2 stage against close-range units and remains relevant throughout the rest of the game as a bread-and-butter fortification.
The Pit Bull's high rate of fire and DPS makes it super effective against both lighter T1 units and heavier T2s.
When not firing, it automatically hunkers down, more than doubling its health pool.
Pair some Pit Bulls with radar, jamming and a Rattlesnake to offset their vulnerability against ranged units and skirmishers.
Unlike most turrets, do note that Pit Bulls are unable to shoot over Fortification Walls. To compensate, they have the ability to cloak, rendering them undetectable by air scouts.