MP-47 Pulse Cannon

"Originally designed by Dr, Howard Nash at Station Genesis, the weapon was engineered as a means of splitting rock with powerful beams of ion energy. During its engineered first live trial, a miscalculation on Nash's part caused a massive blast that injured 36 military contractors. The cannon was repurposed as an offensive weapon and green lit for active use in 1953"

- Intel document on the Pulse Cannon

The MP-47 Pulse Cannon is a new weapon found in Resistance 2, possibly a human weapon with reverse-engineered Chimeran technology. The Cannon, like most weapons in the game, has a primary and alternate fire. The primary fire is a long range ion beam. Its secondary fire launches a short-range concussive blast capable of shredding weaker enemies to bits.

Uses
The Pulse Cannon is usually found in areas just before a boss. First, it's used to kill the Kraken in San Francisco. Secondly, it is used for eliminating The Swarm. The Pulse Cannon is also useful (but not really recommended) for dealing with more common enemies in large numbers, however, it should only be used for killing these when they are a priority target.