If fired at closer ranges, even the T-103's / Hypnos-T Type won't have the time to react and block the attack, eventually succumbing to its power. Even though this weapon generally kills most enemies with one shot, occasionally, if the rocket is launched at longer ranges, certain enemies like the T-103s or Hypnos-T Type (especially its later mutations) may block the rocket with their arms/claw but since the weapon is quickly reloaded (reloads slightly faster than the grenade launcher) and possesses infinite ammo, chances are they won't be blocking its attacks for long.