This mod changes cl_obituary.gnut to contain the required code for both HUD Revamp (by EladNLG) and Client Kill Callback (by S2ymi).
As such, this mod also requires you have both already installed AND enabled.
Additionally, there's another version of this mod specifically if you also use HaloAnnouncer, which you can get here.
If this mod is causing you any issues, you can contact me on Discord (capt_diqhedd) and I'll try helping if I can.
If you enjoy my mods and want to give me money for some ungodly reason, you can do so here!