DOOM SAVE FILE 100%*
As many people have stated DOOM has a nasty bug which will flag your save as being in developer mode.
I thought i'd share my save which has never been in dev mode, it crashed two times but never got flagged.
*100% means all levels unlocked & played through with most to all collectibles unlocked.
Extract the .7zip to your desktop
Navigate to: C:\Users\User\Saved Games\id Software\DOOM\base
Paste the savegames folder here