Nucleon Shock Cannon

One of the more powerful weapons on Cybertron, the Missile Turret (also called Nucleon Shock Cannon) is exactly what it sounds like: a turret that fires missiles. Desperate fighters can tear the turret from its base and carry it around, whereupon its ammo becomes (very) limited. Turrets feature a lock-on mechanism equivalent to the Thermo rocket launcher.

Fiction

Prime cartoon

Using the recently-acquired Forge of Solus Prime, Megatron attempted to create a new superweapon. He soon realized without the power of a Prime, he could not activate the Forge, ending up with just a smashed lump of metal. Knock Out mused that the end results didn't exactly stack up to a Fortress-Maximus Grade Nucleon Shock Cannon. Operation Bumblebee, Part 2

Games

War for Cybertron

Missile Turrets were used during the Great War. After Omega Supreme was activated, Megatron and his men captured a missile turret emplacement and used it to shoot down the giant Autobot. Transformers: War for Cybertron