UI Vanity agent on the CT Side can hold the c4 using the command

ui_vanitysetting_loadoutslot_ct  c4 causes your ct agent to hold the c4, in some cases this is not visible for others and sometimes is

<img width="1183" height="600" alt="Image" src="https://github.com/user-attachments/assets/c9741ede-aa59-4ce0-ac53-24e9c7d5b844" />