Doom 3

This is the fourth and final boss of the Resurrection of Evil campaign in Doom 3. This boss has a lot of health, use of the artifact is absolutely necessary if you want the fight to go as smooth as possible. The boss will fly around the arena, move accordingly to his attacks while making sure you do not fall off the edge. When the boss comes around use the artifact and switch to the BFG 9000 and unload on him. If you run out of BFG ammo before phase 2 switch to another decently long ranged weapon and fire away. Phase 2 is characterized by the boss flying around and then landing on the platform in the arena. This is an easier phase to hit than the previous. If you have left over BFG 9000 use it now, if not switch to rockets and fire away.