I've been reworked this wad, adjust, fixing some bugs, made each map to be challenge for pistol start.
NO NEED PREVIOUS FILE, just download and put in your GZDoom.
NOTE:
For In the Storm of Bullet, if you play on Zandronum, the Portal connect to Hell Room seem doesnt work because i use Linedef portal, so if you kill the Boss, consider the map is done. Maybe the wrong map format it just perfect for GZDoom.
But for the most part of this map and the rest of wad, you can play on Zandronum without any issue.