Plymouth updated the original mod!: Project Armory
This has been updated for RimWorld 1.4
This was a temporary upload of Project Armory by Plymouth.
I only had to change a few defs in the "DamageDefs/DamagesExplosive.xml" file to get it working.
It could easily have been uploaded as a patch instead of a full replacement, but that would have been more work. If somebody else wants to do that and upload it, let me know, and I'll link to it.