The mod: https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=2646857643

Technically not a mod but I don't know what the terminology is either (I have no knowledge in scripting whatsoever) but I wonder if there is a way to add extra lines of code to execute the first two lines on the cfg file that makes the bodies stay
g_ragdoll_fadespeed 0
g_ragdoll_lvlfadespeed 100
and adding these two lines and making them execute and executing the first two lines after the bodies have been removed, and the bodies get removed everytime a round restarts so that the player can't see the dead bodies they killed the previous round
g_ragdoll_fadespeed 100
g_ragdoll_lvlfadespeed 100