The Plasma Cannon is an explosive weapon used by the Brute class in Tribes: Ascend. It can be unlocked for 200 Gold or 22000 XP. It was released as part of the Stayin' Alive update.
"Big brother to the Plasma Gun, the Plasma Cannon is a flexible weapon, firing massive balls of energy that explode on contact." In-Game Description.
Operation
The Plasma Cannon operates in a similar fashion to the Raider'sPlasma Gun, firing bursts of energy that travel in a straight line, but at a faster rate than the Heavy Spinfusor. It is more powerful than the Plasma Gun, and has a larger clip size, but fires more slowly and has a very slow reload.