Welcome... to the Equilibrium Chainsaw Project.
No, really, it's very simple. I decided to do a minor rebalance of Doom 2's weapons because I made a spreadsheet of the damage values of the weapons, and the face I made when I saw the graph was >:( So I decided to fix that.
Release thread: https://forum.zdoom.org/viewtopic.php?f=43&t=63926