A FireShotgun
From ZDoom Wiki
A_FireShotgun
(no parameters)
Performs Doom's shotgun attack. This is a shortcut to calling A_FireBullets and A_GunFlash with certain predetermined hardcoded parameters.
This code is the equivalent of calling A_FireShotgun for 7 tics on the A frame of the SHTG sprite:
SHTG A 0 A_FireBullets (5.6, 0, 7, 5, "BulletPuff") SHTG A 7 A_GunFlash

