What I noticed is that exec upgrades.txt worked and exec weapons.txt gave me weapons but no ammo. So what I did was added my Plasmid.txt to my weapons.txt cut and pasted UNDER my upgrades.txt.
Also added my research.txt to that so it's one big list.
HOWEVER I added only 6 plasmids in my Plasmid.txt file because I noticed that the game would freeze if I executed that file. Even when I put it as a cut and paste to another file I still got game freeze. When I edited it down to 6 advanced plasmids I not only got all slots opened but filled with my favorite powerful plasmids.
Problems in the game to watch out for:
research.txt won't let you advance in the Fontaine Fisheries episode because it already has the picture research of the spider slicers so you end up not being able to pass into Peach's realm. So what you do is noclip using the bind key for that and pass through. The game will pick up.
With no way to get ammo even though you're at the beginning at the game you might need to double up with the trainer. Just make sure if you use the Trainer you don't bind any keys A-K with executable codes. The only problem with the trainer is that you must turn it off BEFORE you drink Lot 192 or you won't be able to drink the second batch of Lot 192. Just ride the game out until you get it. Then you can turn on your Trainer again.
I'm going to edit my weapons.txt to get only ammo that I have fun with like the proximity mines, heat seekers, trap bolts and see if that works.