Maggot

The Maggot is an enemy in Doom 3. Maggots have two heads and two long black tongues (one for each head). Their back is hunched and consists of two large, tumor-like bloody stumps with retracting barbed bones protruding from them. The Maggot alternates between approaching on all "fives" (since they have five limbs) and walking upright on its back legs, the latter commonly being used when close to the player. It may be interesting to note that each hand has a different shape: one is nothing more than a flat stump, one is a pinching claw and one is a simple human-styled hand. Maggots only have melee attacks.

Maggots make their debut in Alpha Labs Sector 1, where the player encounters a torn up carcass that was pulled up to the ceiling. Upon the player's presence, the carcass begins to scream frantically, causing several Maggots to show up from different spots of the room and surround the player.

Combat characteristics
Only able to perform melee attacks, Maggots either rush up to the player to rend at them with their claws or perform a long-range leap which can cause significant damage and is nearly impossible to dodge.

Tactical analysis
Despite their resemblance to Imps, they are not known to leap as much and are even weaker. However, as they are lot smaller and more mobile, Maggots have a tendency to run up to the player on the back legs then quickly crouch back down, to present themselves as smaller targets. As they have low health, the general strategy is to simply aim a little lower with the Shotgun when they charge, or to take them out from range with either Machine Gun or even a Pistol before they can close in towards the player.