Triad Enforcer

"Big, bad, and wearing black, the Triad Enforcers wail on you with a big chain gun, then have the nerve to throw grenades at you! Jeez!" A Triad Enforcer is an enemy found in Rise of the Triad, not making an appearance until the second episode.

Strategy
One of the most resilient enemies, he takes an ungodly long time to kill with bullet weapons, and even the MP40 can't stun him enough to prevent him from attacking. You should always try to save some explosive or magic weapons in case you meet one of them. At close range he'll use his powerful machine gun, so you never want to be anywhere near him. At long range he can only throw grenades, which are dangerous but can at least be dodged. These grenades travel in a low arc, and if they don't hit a wall first, they'll explode on the ground, potentially right next to you.

If you only have bullets, the best strategy is to run around a corner, and hold down the fire button waiting for him to come near. Rinse and repeat. Every enemy has a hitbox that's larger than it appears, so you can hit him from around a corner even if you can't see him.