|For the Renegade version, see Advanced guard tower (Renegade).|
The advanced guard tower (AGT) was a GDI defensive structure during the First Tiberium War. It was used as an all-round fortification, being adept at engaging both ground and air targets effectively. The Tower is phased out after the First Tiberium War.
In Command & Conquer: Tiberian Dawn, the AGT is the anti-infantry and anti-aircraft likely an improved to the Guard Tower. The AGT has longer range and sight than the guard tower. To counter these defences you could build Devil's Tongue flame tank and/or Light tank, Medium tank and/or Mammoth Tank.