Aimbot

An aimbot is a multiplayer cheat which causes the cheating player to automatically center the opponent on the screen.

Aimbots are considered unfair, as they enhance player aim abilities through an automated means to a level of accuracy that is not humanly executable. Also, they may provide means to locate opponents that are not normally visible (because the cheating player is able to automatically face the opponent, regardless of walls separating them or distance from one another).

Implementation of aimbots usually involves a replacement Doom executable file or a TSR program. Detection of involves either analysis of the recording file (.lmp), or visual observation.

Doom (2016)
Doom (2016) multiplayer is especially prone to abuse of aimbots, as the game has no built-in anti-cheat and a number of commercial options are available for cheating tools. Such cheaters will especially abuse the headshot power of the vortex rifle, hellshot, and static rifle weapons, in concert with wall hack cheats which allow them to also see the position of all players in a match.

Source

 * This writeup includes text from The autoaim cheat for Doom2 1.9, used with permission.