Airstrik

Airstrik was a early source modification derived from Doom Legacy 1.25 by Sir Kenny. It was based on two DeHackEd based patches from Gokuma called Doom From Above 2 pre-beta and Borderdoom.

History
Airstrik was first released on November 13, 1998. Based off the August 25, 1998 release of Doom Legacy and the DeHackEd patches Doom From Above 2 pre-beta and Borderdoom, it primarily serves as a demonstrator of new gameplay-related mechanics previously unseen in Doom, such as flight and aircraft support. A demonstration WAD, called includes these additions.

The modification was largely unknown to the general public until 2020.

Features

 * Aircraft support for actors, monsters and other things, such as helicopters
 * Turrets that automatically shoot down enemy aircraft
 * The player has the ability to use a jetpack and achieve flight
 * New weapons, such as a tactical nuke using the rocket launcher sprite, a mortar like launcher and bombs

Demonstration map
The Airstrik package includes a WAD called. It features a demonstration map that includes the following:
 * A firefight in the sky between a helicopter and the player (If the helicopter is not destroyed by the turrets on the ground)
 * Several fixed turrets that shoot flying enemies on-sight

Legacy
The modification resurfaced in 2020 when Gokuma in a Doomworld forums released a lot of old Legacy related files to the community, including.