Anyways, here's a neat little mod I whipped up for Doom called Inventory Doom.

Basically, it turns most items into inventory items that can be used between levels. Obviously, limits have been imposed on how many items you can carry. For instance, you can only carry 2 Medkits (Maybe I should increase it to 3), and 4 Stimpacks (Again, should probably be increased. Here's a list of the items that are now inventory items:
-"Clip" Box
-Shell Box
-Rocket Box
-Cell Pack
-Backpack
-Stimpack
-Medkit
-Berserk
-Green Armor
-Blue Armor
-Computer Map
-Night Vision goggles
-Radiation Suit
Some sounds and sprites used from Strife.
I wasn't able to do keycards since it would be hell to code (I tried and failed). Also, really quickly, could somebody tell me how to make a pallet flash when I use an item? I can't figure this out for the life of me.
Download: https://mega.nz/#!ll42VAYZ!sTv8W18a4DqH ... Q7DLJ-wvTU