HLT
From Spring
The Sentinel and the Gaat Gun, Arm and Core's Tech Level 2 heavy laser towers respectively, are an important part of a developing base. They can provide an invaluable defense, where rocket towers are too weak, and plasma turrets are too inaccurate, these sum it up nicely.
The Arm Sentinel
The Sentinel is an advancement for the LLT, or Light Laser Tower. It cannot be built by the Commander, but it boasts a longer range of fire and can take more of a punch than the LLT.
The Core Gaat Gun
The Gaat Gun is a powerful three barreled laser tower that is a valuable component of base defense. Be aware, though, that the Gaat Gun needs a supply of energy to fire its powerful laser.
