You have done a great job, the main character is full of personality, the sword looking at the player is a brilliant idea and the melee is quite usable even if the health regained from melee combat is a bit too generous.
Unfortunately, I enjoy weapon packs that stay near the vanilla level of power and the shotgun in this one absolutely breaks any combat encounter, it does immense damage and the spread damage afterwards is no joke either.
I played doom 2 with project malice and unfortunately the shotgun destroyed any enemy with only one exception. On the other hand, when I used this weapon pack in Ashes Afterglow, I actually found it to be more balanced. The gang gunners there can actually put the hurt against Broadsword Jim.