It is arguably the most efficient weapon for mid-tier demons like Hell Knights and Revenants.
Doom II: Nightmare! 100% Secrets + Items - Part 2 (MAP17 - MAP30) DOOM II
Cheat codes are entered directly through the keyboard during gameplay (outside of the Automap menu). God Mode (Invulnerability). IDKFA: Provides all weapons, full ammo, and all keys. IDCLIP: Allows you to walk through walls (No-clip). It is arguably the most efficient weapon for
Avoid picking up ammo boxes if you are near maximum capacity to save them for later. For weaker enemies like Imps or Zombies, use the Chainsaw or Berserk-powered fists to preserve shells. God Mode (Invulnerability)
Save ammo by tricking enemies into attacking each other. If a demon is hit by a projectile from another species, they will often turn and fight each other.