oh shit its easy

code/modules/admin/admin_verbs.dm

@@ -40,7 +40,7 @@ GLOBAL_LIST_INIT(admin_verbs_admin, world.AVerbsAdmin())
 	/client/proc/getserverlogs,		/*for accessing server logs*/
 	/client/proc/getcurrentlogs,		/*for accessing server logs for the current round*/
 	/client/proc/cmd_admin_subtle_message,	/*send an message to somebody as a 'voice in their head'*/
-	/client/proc/cmd_admin_centcom_message,	/*send an message to somebody through their headset as CentCom*/
+	/datum/admins/proc/cmd_admin_centcom_message,	/*send an message to somebody through their headset as CentCom*/
 	/client/proc/cmd_admin_delete,		/*delete an instance/object/mob/etc*/
 	/client/proc/cmd_admin_check_contents,	/*displays the contents of an instance*/
 	/client/proc/check_antagonists,		/*shows all antags*/
@@ -181,7 +181,7 @@ GLOBAL_LIST_INIT(admin_verbs_hideable, list(
 	/client/proc/admin_ghost,
 	/client/proc/toggle_view_range,
 	/client/proc/cmd_admin_subtle_message,
-	/client/proc/cmd_admin_centcom_message,
+	/datum/admins/proc/cmd_admin_centcom_message,	
 	/client/proc/cmd_admin_check_contents,
 	/datum/admins/proc/access_news_network,
 	/client/proc/admin_call_shuttle,

code/modules/admin/verbs/randomverbs.dm

@@ -45,7 +45,7 @@
 	admin_ticket_log(M, msg)
 	SSblackbox.record_feedback("tally", "admin_verb", 1, "Subtle Message") //If you are copy-pasting this, ensure the 2nd parameter is unique to the new proc!
 
-/client/proc/cmd_admin_centcom_message(mob/M in GLOB.mob_list)
+/datum/admins/proc/cmd_admin_centcom_message(mob/M in GLOB.mob_list)
 	set category = "Special Verbs"
 	set name = "CentCom Message"
 	var/mob/living/carbon/human/H = M